Add a server-side changeset queue per pad

fixes #1573
Don't block changeset queue with delivering changeset
dont crash on no auth, ust a bandaid
Merge branch 'feature/add-cs-queue' of github.com:ether/etherpad-lite into dont-crash-noauth
better message for admins
Fix safeRun that tries to shift on subsequent restarts
Merge pull request #1786 from clkao/saferun

Fix safeRun that tries to shift on subsequent restarts
refactor setAuthorStyle
new hook: aceSetAuthorStyle
use SAUCE_ACCESS_KEY
Merge pull request #1797 from clkao/author-style-hook

Author style hook
Localisation updates from http://translatewiki.net.
Cleanup gophers
Merge pull request #1804 from rgbkrk/proto_cleanup

Cleaning out gophers
Only kept URL schemes which have an RFC standard
Merge pull request #1805 from rgbkrk/proto_cleanup

Delete URL schemes which don't have an RFC standard
added log4js 0.6.6
allow cssmanager to manage outer_ace
document aceSetAuthorStyle
Update sauce key