Fixed GWT compile errors and server thread crashes

server/build.gradle

@@ -6,6 +6,16 @@ sourceSets.main.java.srcDirs = [ "src/" ]
 project.ext.mainClassName = "io.anuke.mindustry.server.ServerLauncher"
 project.ext.assetsDir = new File("../core/assets");
 
+ext.getDeployVersion = {
+    if(project.gradle.startParameter.taskNames.size() == 0 || !project.gradle.startParameter.taskNames.first().contains("deploy")) return;
+
+    if(!project.hasProperty("deployversion")){
+        throw new InvalidUserDataException("No version set. Set version with -Pdeployversion=name");
+    }
+
+    return deployversion;
+}
+
 task run(dependsOn: classes, type: JavaExec) {
     main = project.mainClassName
     classpath = sourceSets.main.runtimeClasspath
@@ -37,4 +47,12 @@ task dist(type: Jar) {
     }
 }
 
+task deploy(type: Copy){
+    dependsOn "dist"
+    
+    from "build/libs/server-release.jar"
+    into "../deploy/";
+    rename ("server-release.jar", appName + "-server-" + getDeployVersion() + ".jar");
+}
+
 dist.dependsOn classes