Added JOpt.simple dependency for command-line parsing; fixed bug in build.gradle to support alternative fatmain

voting-booth-gui/build.gradle

@@ -56,6 +56,9 @@ dependencies {
     // Google protobufs
     compile 'com.google.protobuf:protobuf-java:3.+'
 
+    // Command-line option parsing:
+    compile 'net.sf.jopt-simple:jopt-simple:5.0.3'
+    
     // Json configuraiton parsing
     compile group: 'org.json', name: 'json', version: '20160810'
 
@@ -132,7 +135,10 @@ idea {
 /*===================================
  *        "Fat" Build targets
  *===================================*/
-
+ 
+task printProps << {
+    println fatmain
+}
 
 if (project.hasProperty('mainClassName') && (mainClassName != null)) {
 
@@ -147,17 +153,19 @@ if (project.hasProperty('mainClassName') && (mainClassName != null)) {
 
         destinationDir = buildDir
 
-        def fatMain = hasProperty('fatmain') ? fatmain : mainClassName
+        def fatMain
+        
+        if (this.hasProperty('fatmain')) {
+            fatMain = fatmain 
+            appendix = "fat-${fatMain}"
+        } else {
+            fatMain = mainClassName
+            appendix = "fat"
+        }
 
         applicationClass fatMain
 
-        def testJar = hasProperty('test')
-
-        if (hasProperty('fatmain')) {
-            appendix = "fat-${fatMain}"
-        } else {
-            appendix = "fat"
-        }
+        def testJar = this.hasProperty('test')
 
         if (testJar) {
             from sourceSets.test.output