Pointing prebuilt repo to AOSP

Change-Id: I875cb0d1e15b64794239fea3fd8755971786fd03
Enable "sync -c" default for repo

There's no need to fetch every single branch

Change-Id: I48861c2b46e5d9d94c478fa78e2724546f71ddf1
Add the OTA updater

Change-Id: I544203a26f13f0723d0e96add249160cb606cf9a
return to CM webktit, and switch FileManager to CMFileManager
Update gerrit location in manifest and docs

Change-Id: I5121761af6b778415aeb6b9722674f555bcabd28
Merge remote-tracking branch 'remotes/tpruvot/ics' into local