Bug 848226 - [Settings] Remove useless code
bug 851278 followup - remove obsolete dir from external apps dirs
Merge branch 'master' into bug-851278
Merge pull request #8707 from mykmelez/bug-851278

bug 851278 followup - remove obsolete dir from external apps dirs
Merge pull request #8691 from masap/20130317_1

Bug 848226 - [Settings] Remove useless code r=djf
no bug, whitespace linting fix r=irc-fabrice
Test