Add a java version of the dev app. (#16)

build.gradle

@@ -29,6 +29,21 @@ apply plugin: 'java'
 
 apply from: 'config.gradle'
 
+sourceSets {
+    dev
+}
+
+task run(type: JavaExec) {
+    classpath = sourceSets.dev.runtimeClasspath
+
+    main = 'edu.wpi.first.wpiutil.DevMain'
+}
+
+dependencies {
+    testCompile 'junit:junit:4.12'
+    devCompile sourceSets.main.output
+}
+
 model {
     // Exports config is a utility to enable exporting all symbols in a C++ library on windows to a DLL.
     // This removes the need for DllExport on a library. However, the gradle C++ builder has a bug

src/dev/java/edu/wpi/first/wpiutil/DevMain.java

@@ -0,0 +1,8 @@
+package edu.wpi.first.wpiutil;
+
+public class DevMain {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+        System.out.println(RuntimeDetector.getPlatformPath());
+    }
+}