BApp preparation

build.gradle

@@ -17,8 +17,11 @@ sourceSets {
     }
 }
 
+targetCompatibility = '1.8'
+sourceCompatibility = '1.8'
+
 task fatJar(type: Jar) {
     baseName = project.name + '-all'
     from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
     with jar
-}
+}