SystemUI: Use material delete icon

Change-Id: I11df5713486672e4f5c4784e6f94a893cf36b4dd
Fix wrong translation for phone_hint in Spanish

Google seems to have it fixed on master branch but it is not yet on lollipop one.
This fixes the trouble where the system tells you on the lockscreen to
swipe left for camera and also swipe left for phone
when it should be swipe right for phone.

Change-Id: Ic9bba128e1b617c58c77c60acfdcffc6918da3f8
SystemUI: Add double tap to sleep gesture

Change-Id: I4c54718e8ec8774677d13917b3a7ffa3b4b18cb5
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>

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

	modified:   packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java