fixed some versoning stuff

build.gradle

@@ -63,16 +63,8 @@ version = project.buildInfo.revision
 minecraft {
     version = "1.10.2-12.18.2.2107"
     runDir = "run"
-
-    // the mappings can be changed at any time, and must be in the following format.
-    // snapshot_YYYYMMDD   snapshot are built nightly.
-    // stable_#            stables are built at the discretion of the MCP team.
-    // Use non-default mappings at your own risk. they may not allways work.
-    // simply re-run your setup task after changing the mappings to update your workspace.
     mappings = "snapshot_20161015"
-    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
-
-    replace "${version}", project.version
+    replace '@VERSION@', project.version
 }
 
 //noinspection GroovyAssignabilityCheck