Migrate to protcol buffer communication (https://github.com/google/protobuf), use preliminary buffer format from https://github.com/Boukefalos/arduino-tm1638.

build.gradle

@@ -1,5 +1,6 @@
 apply plugin: 'java'
 apply plugin: 'eclipse'
+apply plugin: 'protobuf'
 apply plugin: 'maven'
 
 group = 'com.github.boukefalos'
@@ -10,6 +11,16 @@ task wrapper(type: Wrapper) {
 	gradleVersion = '2.2'
 }
 
+buildscript {
+	repositories {
+		mavenCentral()
+	}
+
+	dependencies {
+		classpath 'com.andrewkroh.gradle:gradle-protobuf-plugin:0.4.0'
+	}
+}
+
 repositories {
 	maven {
 		url 'https://github.com/Boukefalos/jlibloader/raw/mvn-repo/'