Bug 919515 - Disable test_browser_search - Searching for words is not giving results
Merge pull request #12361 from zacc/bug919507

Bug 919507 - Disable test_browser_search
Bug 909622 - [B2G][Helix][messages][zhaotao]Sending mms with attachment(chinese name mp3) fail - r=julienw

- Replace all non standard word characters in filenames with a # while encoding SMIL
- Remove HTML escaping in preference for replacing unsafe chars with the #
- Add unit test to ensure that quotes are always escaped
Bug 919439 - Avoid repainting in landing page after clicking home button and delete dead code in grid.js