fix Gruntfile.js issue ,unable to compress js
fix Gruntfile.js issue ,unable to compress js

apache/incubator-kylin,apache/kylin,apache/kylin,apache/incubator-kylin,apache/kylin,apache/kylin,apache/kylin,apache/incubator-kylin,apache/incubator-kylin,apache/kylin,apache/incubator-kylin,apache/incubator-kylin,apache/kylin