CLC-2846 - Add .jshintrc file
https://jira.media.berkeley.edu/jira/browse/CLC-2846

This is the first PR, probably a couple of more to follow with perhaps the following functionality:

* Fix spec JS files
* CI integration
* Exclude the vendor files (angular-mock)
Merge pull request #1872 from christianv/CLC-2846

CLC-2846 - Add .jshintrc file