Tags and Recommendation APIs
Made suggested changes to change the uppercase to lowercase . also
removed a sysout
Used promise chaining in new samples
Created a Class Tag in base directory. BlogService uses this class.
Changed all samples to use promise chaining.
Corrected message strings in the test cases.
Changed class name Post to BlogPost. made corresponding changes in
samples.
Implemented other small suggested changes
Changed blogService APIs to take single input(string/object), Corrected
some documentation comments, moved tag class to connections folder,
moved tafs xpath to connection constants, Added API to get blog post
recommenders
Merge pull request #660 from RajmeetBal/TagsAndRecommendAPIs

Tags and Recommendation APIs