add initial compileGroup support

app/js/CompileManager.js

@@ -199,7 +199,8 @@ module.exports = CompileManager = {
               timeout: request.timeout,
               image: request.imageName,
               flags: request.flags,
-              environment: env
+              environment: env,
+              compileGroup: request.compileGroup
             },
             function(error, output, stats, timings) {
               // request was for validation only
@@ -536,6 +537,7 @@ module.exports = CompileManager = {
     const directory = getCompileDir(project_id, user_id)
     const timeout = 60 * 1000 // increased to allow for large projects
     const compileName = getCompileName(project_id, user_id)
+    const compileGroup = 'synctex'
     return CommandRunner.run(
       compileName,
       command,
@@ -543,6 +545,7 @@ module.exports = CompileManager = {
       Settings.clsi != null ? Settings.clsi.docker.image : undefined,
       timeout,
       {},
+      compileGroup,
       function(error, output) {
         if (error != null) {
           logger.err(
@@ -606,6 +609,7 @@ module.exports = CompileManager = {
     const compileDir = getCompileDir(project_id, user_id)
     const timeout = 60 * 1000
     const compileName = getCompileName(project_id, user_id)
+    const compileGroup = 'wordcount'
     return fse.ensureDir(compileDir, function(error) {
       if (error != null) {
         logger.err(
@@ -621,6 +625,7 @@ module.exports = CompileManager = {
         image,
         timeout,
         {},
+        compileGroup,
         function(error) {
           if (error != null) {
             return callback(error)