Settings : Make proximity opt-in

Change-Id: Idfa64758a3c6d60ca4801f6f7f34f0429f95cbec
(cherry picked from commit 02fb6137c46a02864d4bb804df80fc56a6e28e48)
Settings: Slimrecents background color && transparency [1/2]
Allow user to specify background color and transparency level
    for the slimrecents panel.

PS: now setting sticks through reboots and TRDS state
        changes. also, add reset to default color option.

PS: when resetting to default, use TRDS (png) resources
        instead of custom color

NOT USED FOR crDroid -> PS: properly set preference summary for default
        value ("TRDS default")

Change-Id: I42ec2c9cf0f65b0dc8936e1cc45f171afe1d6afa
PS: remove LSN dependency

Conflicts:
	src/com/android/settings/crdroid/RecentPanelSettings.java

(cherry picked from commit c98d4ff132c84caeb341ea0e594118ffdef18ee7)
Follow normal lock screen convention - allow user to retry when creating pattern lock

Change-Id: I6ad39b07b8de3de03146322b37b60e3f846093d1
(cherry picked from commit 0ca78674528858890a0c56743eb463673d08568e)
Merge pull request #242 from prinsnmx/patch-14

Update cr_strings.xml
(cherry picked from commit d4ecbde324292a0ab8bb1b87f39eb72df903e5ae)