Wrote an autocomplete wrapper in common.js. This quick search searches for users, groups and review requests. 
The autocomplete widget was modified to accommodate the feature where clicking on a suggestion would open the object's URL in a new window. 
The compressed version of the autocomplete widget is included.
Added the documentation for the search resource as well. I also removed ui.autocomplete in reviews.css to common.css. Added the js scripts that autocomplete needs in base.html and removed duplicate js files from other html templates. 

A lot of manual testing with as many different cases I could think of using different group display names & names, user username/first name/last name, and review request ID/summaries. Caught quite a few bugs through this. Not sure if this is all I should be doing. Am I suppose to be writing some tests as well?