Changed version of aws-lambda-java-core to 1.2.0 (aws#73)

* Changed version of aws-lambda-java-core to 1.2.0

* Updated all mentions of 1.1.0 to 1.2.0

Author: raupachz

README.md

@@ -27,7 +27,7 @@ ___
 <dependency>
   <groupId>com.amazonaws</groupId>
   <artifactId>aws-lambda-java-core</artifactId>
-  <version>1.1.0</version>
+  <version>1.2.0</version>
 </dependency>
 <dependency>
   <groupId>com.amazonaws</groupId>
@@ -49,7 +49,7 @@ ___
 [Gradle](https://gradle.org)
 
 ```groovy
-'com.amazonaws:aws-lambda-java-core:1.1.0'
+'com.amazonaws:aws-lambda-java-core:1.2.0'
 'com.amazonaws:aws-lambda-java-events:2.2.5'
 'com.amazonaws:aws-lambda-java-log4j:1.0.0'
 'com.amazonaws:aws-lambda-java-log4j2:1.0.0'
@@ -58,7 +58,7 @@ ___
 [Leiningen](http://leiningen.org) and [Boot](http://boot-clj.com)
 
 ```clojure
-[com.amazonaws/aws-lambda-java-core "1.1.0"]
+[com.amazonaws/aws-lambda-java-core "1.2.0"]
 [com.amazonaws/aws-lambda-java-events "2.2.5"]
 [com.amazonaws/aws-lambda-java-log4j "1.0.0"]
 [com.amazonaws/aws-lambda-java-log4j2 "1.0.0"]
@@ -67,7 +67,7 @@ ___
 [sbt](http://www.scala-sbt.org)
 
 ```scala
-"com.amazonaws" % "aws-lambda-java-core" % "1.1.0"
+"com.amazonaws" % "aws-lambda-java-core" % "1.2.0"
 "com.amazonaws" % "aws-lambda-java-events" % "2.2.5"
 "com.amazonaws" % "aws-lambda-java-log4j" % "1.0.0"
 "com.amazonaws" % "aws-lambda-java-log4j2" % "1.0.0"