Merge pull request #1968 from ReactiveX/bump-to-2.2

Upgrade to Gradle 2.2

Author: benjchristensen

build.gradle

@@ -1,11 +1,12 @@
 buildscript {
   repositories { jcenter() }
-  dependencies { classpath 'com.netflix.nebula:gradle-rxjava-project-plugin:1.12.+' }
+  dependencies { classpath 'com.netflix.nebula:gradle-rxjava-project-plugin:2.+' }
 }
 
 description = 'RxJava: Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.'
 
 apply plugin: 'rxjava-project'
+apply plugin: 'java'
 
 dependencies {
     testCompile 'junit:junit-dep:4.10'

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
-#Wed Feb 05 12:05:54 CET 2014
+#Sat Dec 13 00:15:28 PST 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-bin.zip