fixed bug where table headers were lost after backbone render.
on measure list - only adding ellipses if measure text is truncated.
added approved indicator in measures list, added vote counts in measure list.
Merge branch 'backbone' of github.com:kristenhazard/epm-catalog into backbone
measure list - added current user vote status, styling of vote stats, style for approved status.

fix: also changed var name current_id to currentId.
change: style for approved status changed from left border to green
background to avoid shifting elements in layout.
disable approve button if not admin or superuser, added tooltip to indicate button is disabled.
scoping jquery selectors to local view, removed unused pre-backbone code in measures.js.coffee.
added sort by measure code on measures list.
span size for help text