Fixed protobuf dependency problems

build.gradle

@@ -5,6 +5,7 @@ plugins {
 }
 
 apply plugin: 'java'
+apply plugin: 'com.google.protobuf'
 apply plugin: 'eclipse'
 apply plugin: 'idea'
 
@@ -41,6 +42,9 @@ dependencies {
     runtime 'ch.qos.logback:logback-classic:1.1.2'
     runtime 'ch.qos.logback:logback-core:1.1.2'
 
+    // Google protobufs
+    compile 'com.google.protobuf:protobuf-java:3.+'
+
     testCompile 'junit:junit:4.+'
 
     runtime 'org.codehaus.groovy:groovy:2.4.+'
@@ -49,6 +53,15 @@ dependencies {
 
 /*==== You probably don't have to edit below this line =======*/
 
+protobuf {
+  // Configure the protoc executable
+  protoc {
+    // Download from repositories
+    //artifact = 'com.google.protobuf:protoc:3.0.0-alpha-3'
+    artifact = 'com.google.protobuf:protoc:3.+'
+  }
+}
+
 // Used to generate initial maven-dir layout
 task "create-dirs" { description = "Create default maven directory structure" } << {
     sourceSets*.java.srcDirs*.each { it.mkdirs() }