Drop Lockscreen vibrate option [2/2]

It doesn't make sense to keep haptic feedback on, but
disable it only for that little unlock icon.
This option didn't do anything more than that.
Let's drop it and don't confuse users.

Change-Id: I0211deea61b2d5b048deb118c30fc1397a56d3ee

Conflicts:
	res/xml/security_settings_cyanogenmod.xml
	src/com/android/settings/SecuritySettings.java

	modified:   res/values-ca/cm_strings.xml
	modified:   res/values-de/cm_strings.xml
	modified:   res/values-es/cm_strings.xml
	modified:   res/values-fr/cm_strings.xml
	modified:   res/values-hu/cm_strings.xml
	modified:   res/values-it/cm_strings.xml
	modified:   res/values-lt/cm_strings.xml
	modified:   res/values-nl/cm_strings.xml
	modified:   res/values-pl/cm_strings.xml
	modified:   res/values-pt/cm_strings.xml
	modified:   res/values-ru/cm_strings.xml
	modified:   res/values/cm_strings.xml
	modified:   res/xml/security_settings_password.xml
	modified:   res/xml/security_settings_pin.xml
	modified:   src/com/android/settings/SecuritySettings.java
Move lockscreen buttons options to one place

When you enter "Button actions" you expect to find unlock
options there, not in "Screen security -> Additional options".
Before: http://goo.gl/mX9DMQ
After: http://goo.gl/hPDKyt

Change-Id: Id9913024a46b0237dd2a1a9b0959eaa84aff379b

Conflicts:
	src/com/android/settings/SecuritySettings.java

	modified:   res/xml/lockscreen_buttons_settings.xml
	modified:   res/xml/security_settings_cyanogenmod.xml
	modified:   src/com/android/settings/SecuritySettings.java
	modified:   src/com/android/settings/cyanogenmod/LockscreenButtons.java
Remove "Enable widgets" checkbox from Face Unlock settings

It doesn't work anyway as we have a different option to control
widgets' behaviour.

Change-Id: I2f3c2b6f8f638c6c4d9d9c9b3cdb2facfef70039
Settings: fix typo

KEY_SENORS_MOTORS_CATEGORY should be KEY_SENSORS_MOTORS_CATEGORY

Change-Id: Id09c2c8c2f8427b59648e34d8883a7b9b691989d
Fix null pointer exceptions in NetworkPolicyEditor

This upload fixes a null pointer exception issue.
After this fix the modified methods return
their corresponding default values instead of null.
Cherry-picked from AOSP: https://android-review.googlesource.com/#/c/62248/

Change-Id: Idb94f8b808b8dd18be5e3fc92cc5560ce0f81c4f