downgrade to jdk7 (because of findbugs problem)

build.gradle

@@ -24,8 +24,11 @@ group = 'at.uibk.dbis'
 version = '0.2.3-SNAPSHOT'
 
 description = 'PhD project of Nikolaus Krismer'
-sourceCompatibility=JavaVersion.VERSION_1_8
-targetCompatibility=JavaVersion.VERSION_1_8
+// Upgrade as soon as findbugs 2.1.0 is available (new version should support JDK8)
+//sourceCompatibility=JavaVersion.VERSION_1_8
+//targetCompatibility=JavaVersion.VERSION_1_8
+sourceCompatibility=JavaVersion.VERSION_1_7
+targetCompatibility=JavaVersion.VERSION_1_7
 
 /*
  * Version handling:
@@ -134,7 +137,7 @@ buildscript {
 	dependencies {
 		classpath 'com.moowork.gradle:gradle-grunt-plugin:0.5'
 		classpath 'com.moowork.gradle:gradle-node-plugin:0.5'
-		classpath 'org.gradle.api.plugins:gradle-cargo-plugin:1.4'
+		classpath 'org.gradle.api.plugins:gradle-cargo-plugin:1.4.1'
 		classpath 'org.gradle.api.plugins:gradle-vagrant-plugin:0.5'
 		classpath 'org.asciidoctor:asciidoctor-gradle-plugin:0.7.0'
 	}
@@ -271,7 +274,7 @@ eclipse {
 }
 
 findbugs {
-	effort = "max"
+	effort = 'max'
 	ignoreFailures = true
 	toolVersion = '2.0.3'
 }