Account page title, style regressions, simpler img

* Add a title for the Accounts page
* fix style regressions on modal pages
* simplify prx-img tag directive / make work on mobile
* fix loading bar false-starts
* ellipsize in limit-to-html directive
ellipsize specs, make limiter smarter about emptying text nodes
dont allow about section on player to push behind image
Merge pull request #39 from PRX/design/cleanup

Account page title, style regressions, simpler img