drop support for Go 1.4

Achille Roussel · Achille Roussel · commit bfd41ad7876b · 2017-06-10T12:09:54.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,6 @@
 sudo: false
 language: go
 go:
-  - 1.4
   - 1.5
   - 1.6
   - 1.7
diff --git a/README.md b/README.md
@@ -39,7 +39,7 @@ A MySQL-Driver for Go's [database/sql](https://golang.org/pkg/database/sql/) pac
   * Optional placeholder interpolation
 
 ## Requirements
-  * Go 1.4 or higher
+  * Go 1.5 or higher
   * MySQL (4.1+), MariaDB, Percona Server, Google CloudSQL or Sphinx (2.2.3+)
 
 ---------------------------------------
