added SemVer version nudging

Author: AbrarSyed

src/main/java/net/minecraftforge/gradle/user/UserBasePlugin.java

@@ -7,6 +7,7 @@
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.List;
+import java.util.regex.Pattern;
 
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
@@ -231,6 +232,15 @@ public void execute(TaskSourceCopy t)
             exec.jvmArgs(getServerJvmArgs(getExtension()));
             exec.jvmArgs(getServerRunArgs(getExtension()));
         }
+        
+        // complain about version number
+        // blame cazzar if this regex doesnt work
+        Pattern pattern = Pattern.compile("(?:(?:mc)?((?:\\d+)(?:.\\d+)+)-)?((?:0|[1-9][0-9]*)(?:\\.(?:0|[1-9][0-9]*))+)(?:-([\\da-z\\-]+(?:\\.[\\da-z\\-]+)*))?(?:\\+([\\da-z\\-]+(?:\\.[\\da-z\\-]+)*))?", Pattern.CASE_INSENSITIVE); 
+        if (!pattern.matcher(project.getVersion().toString()).matches())
+        {
+            project.getLogger().warn("Version string '"+project.getVersion()+"' does not match SemVer specification ");
+            project.getLogger().warn("You should try SemVer : http://semver.org/");
+        }
     }
 
     protected abstract void applyUserPlugin();

src/main/java/net/minecraftforge/gradle/user/patcherUser/forge/ForgePlugin.java

@@ -128,7 +128,6 @@ private void setForgeVersionJson()
         try
         {
             getExtension().forgeJson = JsonFactory.GSON.fromJson(getWithEtag(url, jsonCache, etagFile), ForgeVersion.class);
-            
         }
         catch(NullPointerException e)
         {