decaffeinate: Rename CommandRunner.coffee and 25 other files from .coffee to .js

app/coffee/DbQueue.js

@@ -0,0 +1,13 @@
+async = require "async"
+Settings = require "settings-sharelatex"
+logger = require("logger-sharelatex")
+queue = async.queue((task, cb)->
+		task(cb)
+	, Settings.parallelSqlQueryLimit)
+
+queue.drain = ()->
+	logger.debug('all items have been processed')
+
+module.exports = 
+	queue: queue
+