Remove fallback for pt-BR mobile

Locale is now completely translated
Merge pull request #155 from flodolo/enable_ptBRmobile

Remove fallback for pt-BR mobile
Fix Bug 932780, add gruntjs tasks to travis
Merge pull request #156 from ossreleasefeed/setup-gruntjs-jshint-for-travis

Fix Bug 932780, add gruntjs tasks to travis r=laura
added git repo bits
Merge pull request #157 from ossreleasefeed/nobug-add-repo-to-packagejson

added git repo bits r=laura