SystemUI: Re-adjust signal strength icons

Change-Id: Id6dad0800e5e15ec694b24ecb9a88ccc0d4771d8
Enhance power menu reboot option

* Use our old reboot icon
* Set correct dialog title & message when rebooting
* Move strings to cm_strings
* Add back reboot_download string used by samsung devices
* Remove Chinese translations, will be handled through crowdin

Change-Id: I3ba0e20dcdba0a295a071304048eebab6cfcf49d
Add an option to change the device hostname (1/2).

This adds an option to modify the device hostname used
in ip resolution. This is useful when connecting to the
android device in a dynamic dhcp environment.

Change-Id: I44e4771f4415a32fe66867d4dd90f1ad138341e1
SystemUI: PhoneStatusBarView: disable DEBUG_GESTURES

Change-Id: I3911c464d1f008ac2c96a1104761007fad41a3ae
Signed-off-by: Roman Birg <roman@cyngn.com>
SystemUI: add Settings.System toggle for quick-quick settings pulldown

Change-Id: I3c5dcfc23f39bf8be6c402e25f61e6f57a8add2c
Signed-off-by: Roman Birg <roman@cyngn.com>
SystemUI: double tap to sleep improvements

* Make it more reliable
* Add it to keyguard
* Add a content observer to not always query Settings.System on every
touch event

Change-Id: I292c4d9d9f810843590b7a9ec6e15b99ac44009d
Signed-off-by: Roman Birg <roman@cyngn.com>
Merge remote-tracking branch 'github/cm-12.0' into cm-12.0-legacy

Change-Id: I82a0bd4dbef21c6315b023457dde7654cd12ff40