Merge pull request #1308 from amarzavery/dev

edited readme.md of azure-extra
cloud service
address jshint error due to for-in loop
Merge pull request #1310 from yugangw-msft/jshint

address jshint error flagged by the latest jshint 2.5.6 released yesterday.
Merge pull request #1309 from yugangw-msft/cloudservice

expose cloud service client from scheduler package