update library versions

build.gradle

@@ -1,20 +1,12 @@
-apply plugin: "java"
-apply plugin: "application"
-
-apply plugin: 'com.github.johnrengelman.shadow'
-
-buildscript {
-    repositories { jcenter() }
-    dependencies {
-        classpath 'com.github.jengelman.gradle.plugins:shadow:0.9.0-M3'
-    }
+plugins {
+  id 'java'
+  id 'application'
+  id 'com.github.johnrengelman.shadow' version '1.2.0'
 }
 
 sourceCompatibility = 1.8
 
-
 mainClassName = "eu.lestard.colorpuzzlefx.App"
-jar.manifest.attributes("Main-Class" : mainClassName)
 
 repositories {
     mavenCentral()
@@ -33,12 +25,12 @@ dependencies {
     compile 'ch.qos.logback:logback-classic:1.1.2'
 
     // testing
-    testCompile "junit:junit:4.11"
-    testCompile "org.assertj:assertj-core:1.6.0"
-    testCompile "eu.lestard:assertj-javafx:0.1.1"
+    testCompile "junit:junit:4.12"
+    testCompile "org.assertj:assertj-core:1.7.1"
+    testCompile "eu.lestard:assertj-javafx:0.3.0"
 }
 
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '2.0'
-}
+    gradleVersion = '2.2.1'
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue Sep 09 21:02:07 CEST 2014
+#Sat Feb 14 23:19:53 CET 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-bin.zip