Fix JSDocs strings

[manrajgrover]

Since auto documentation generation depends on JS DocStrings, there is need to fix and provide as much information possible.

Reference: http://usejsdoc.org/index.html

[saketepe]

can you explain further?

[aalzubidy]

Hi. It looks like someone completed the issue, I checked the files, and I did not find a problem. Let me know if this is still an issue.