diff --git a/Cargo.lock b/Cargo.lock
index f1faf45d1c0..f6c10918f40 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -21,6 +21,14 @@ dependencies = [
  "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ammonia"
 version = "2.0.0"
@@ -184,7 +192,7 @@ dependencies = [
  "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "diesel_full_text_search 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "diesel_migrations 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "docopt 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "dotenv 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -284,7 +292,7 @@ dependencies = [
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "twoway 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "typed-arena 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode_categories 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -598,14 +606,13 @@ dependencies = [
 
 [[package]]
 name = "docopt"
-version = "0.8.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -715,7 +722,7 @@ dependencies = [
  "atty 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "humantime 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1273,11 +1280,8 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.0.0"
+version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "memoffset"
@@ -1441,7 +1445,7 @@ name = "nom"
 version = "4.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1852,20 +1856,19 @@ dependencies = [
  "aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex"
-version = "1.0.1"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1880,11 +1883,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.1"
+version = "0.6.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "remove_dir_all"
@@ -2183,7 +2183,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "strsim"
-version = "0.6.0"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -2351,11 +2351,10 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "0.3.4"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2581,7 +2580,7 @@ name = "twoway"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2599,11 +2598,6 @@ name = "ucd-trie"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "ucd-util"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "unicase"
 version = "1.4.2"
@@ -2799,6 +2793,7 @@ dependencies = [
 "checksum adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7e522997b529f05601e05166c07ed17789691f562762c7f3b987263d2dedee5c"
 "checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
 "checksum aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"
+"checksum aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
 "checksum ammonia 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9c8cd3dff93e4471fff384645c5625cb8e4349000d8a730b9685bdbb19cbacb4"
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
 "checksum arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0d382e583f07208808f6b1249e60848879ba3543f57c32277bf52d69c2f0f0ee"
@@ -2855,7 +2850,7 @@ dependencies = [
 "checksum diesel_full_text_search 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c6bb76b26499ddcd4672f4a47fa6cdf97b5dfbedf688c4e2f386ba576585b4ae"
 "checksum diesel_migrations 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3cde8413353dc7f5d72fa8ce0b99a560a359d2c5ef1e5817ca731cd9008f4c"
 "checksum digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "03b072242a8cbaf9c145665af9d250c59af3b958f83ed6824e13533cf76d5b90"
-"checksum docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3b5b93718f8b3e5544fcc914c43de828ca6c6ace23e0332c6080a2977b49787a"
+"checksum docopt 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7f525a586d310c87df72ebcd98009e57f1cc030c8c268305287a476beb653969"
 "checksum dotenv 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a70de3c590ce18df70743cace1cf12565637a0b26fd8b04ef10c7d33fdc66cdc"
 "checksum dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6d301140eb411af13d3115f9a562c85cc6b541ade9dfa314132244aaee7489dd"
 "checksum email 0.0.20 (registry+https://github.com/rust-lang/crates.io-index)" = "91549a51bb0241165f13d57fc4c72cef063b4088fb078b019ecbf464a45f22e4"
@@ -2931,7 +2926,7 @@ dependencies = [
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 "checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
 "checksum memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "148fab2e51b4f1cfc66da2a7c32981d1d3c083a803978268bb11fe4b86925e7a"
-"checksum memchr 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e01e64d9017d18e7fc09d8e4fe0e28ff6931019e979fb8019319db7ca827f8a6"
+"checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
 "checksum migrations_internals 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8089920229070f914b9ce9b07ef60e175b2b9bc2d35c3edd8bf4433604e863b9"
 "checksum migrations_macros 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1664412abf7db2b8a6d58be42a38b099780cc542b5b350383b805d88932833fe"
@@ -2996,10 +2991,10 @@ dependencies = [
 "checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
 "checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
 "checksum regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1731164734096285ec2a5ec7fea5248ae2f5485b3feeb0115af4fda2183b2d1b"
-"checksum regex 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "13c93d55961981ba9226a213b385216f83ab43bd6ac53ab16b2eeb47e337cf4e"
+"checksum regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88c3d9193984285d544df4a30c23a4e62ead42edf70a4452ceb76dac1ce05c26"
 "checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
 "checksum regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"
-"checksum regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05b06a75f5217880fc5e905952a42750bf44787e56a6c6d6852ed0992f5e1d54"
+"checksum regex-syntax 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b143cceb2ca5e56d5671988ef8b15615733e7ee16cd348e064333b251b89343f"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum reqwest 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c4265be4dad32ffa4be2cea9c8ecb5e096feca6b4ff024482bfc0f64b6019b2f"
 "checksum ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2c4db68a2e35f3497146b7e4563df7d4773a2433230c5e4b448328e31740458a"
@@ -3036,7 +3031,7 @@ dependencies = [
 "checksum string_cache 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "25d70109977172b127fe834e5449e5ab1740b9ba49fa18a2020f509174f25423"
 "checksum string_cache_codegen 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1eea1eee654ef80933142157fdad9dd8bc43cf7c74e999e369263496f04ff4da"
 "checksum string_cache_shared 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b1884d1bc09741d466d9b14e6d37ac89d6909cbcac41dd9ae982d4d063bbedfc"
-"checksum strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"
+"checksum strsim 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "032c03039aae92b350aad2e3779c352e104d919cb192ba2fabbd7b831ce4f0f6"
 "checksum swirl 0.1.0 (git+https://github.com/sgrif/swirl.git?rev=de5d8bb)" = "<none>"
 "checksum swirl_proc_macro 0.1.0 (git+https://github.com/sgrif/swirl.git?rev=de5d8bb)" = "<none>"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
@@ -3054,7 +3049,7 @@ dependencies = [
 "checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
 "checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
-"checksum thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1697c4b57aeeb7a536b647165a2825faddffb1d3bad386d507709bd51a90bb14"
+"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e2f0c90a5f3459330ac8bc0d2f879c693bb7a2f59689c1083fc4ef83834da865"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum tokio 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "fcaabb3cec70485d0df6e9454fe514393ad1c4070dee8915f11041e95630b230"
@@ -3077,7 +3072,6 @@ dependencies = [
 "checksum typed-arena 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c6c06a92aef38bb4dc5b0df00d68496fc31307c5344c867bb61678c6e1671ec5"
 "checksum typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "612d636f949607bdf9b123b4a6f6d966dedf3ff669f7f045890d3a4a73948169"
 "checksum ucd-trie 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "71a9c5b1fe77426cf144cc30e49e955270f5086e31a6441dfa8b32efc09b9d77"
-"checksum ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd2be2d6639d0f8fe6cdda291ad456e23629558d466e2789d2c3e9892bda285d"
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicase 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "284b6d3db520d67fbe88fd778c21510d1b0ba4a551e5d0fbb023d33405f6de8a"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
diff --git a/Cargo.toml b/Cargo.toml
index 73ea6d23f06..0c540febc50 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -54,7 +54,7 @@ serde = { version = "1.0.0", features = ["derive"] }
 chrono = { version = "0.4.0", features = ["serde"] }
 comrak = { version = "0.4.0", default-features = false }
 ammonia = "2.0.0"
-docopt = "0.8.1"
+docopt = "1.0"
 scheduled-thread-pool = "0.2.0"
 derive_deref = "1.0.0"
 reqwest = "0.9.1"