Notification sound-to-vibration conversion toggle

Allows to change the new feature of AOSP 4.2, where all notification are
changed to vibrations on vibrate mode. Instead, allow the old behaviour
to silence sound notifications and to only play vibrations if desired.

Alle credits go to romanbb from AOKP, I just ported it, changed the
position in the menu and the label.

Original AOKP-Commit:
https://github.com/AOKP/packages_apps_Settings/commit/e92446576c2dfbe51089287c43c3f799b5cc0057

Patch set 1-6 : Initial commits
Patch set 7   : Better wording of the summary string
Patch set 8   : Lower case app

Change-Id: I267fc4b62ff045f305cf29c1b4f365e91f7cf1db
Goodbye Chronus, it was nice knowing you (2 of 2)

Change-Id: I200fd25a5f21bb19d04fb3fa5e94155e491b228f
Settings: Hide Development settings when it is turned off

This commit hides the Development and Performance settings items
when the user turns off Development settings. This sets things back
to tapping x number of times on the build number to once again enable
developer settings

Patch set 1,2 : Initial commit
Patch set 3   : Fix case where, if user toggles off and on without
                exiting Development settings, the main menu items
                should remain visible
Patch set 4   : Fix typo in comment

Change-Id: I6003f73f5abee54bb000f01757ecffe7b68dba59
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1