Squashed lockscreen commits

LockScreen: Option to hide initial page hints (2/2)
This will add an option to hide the initial page hints
that are shown left and right when the device is turned on.

Change-Id: I188bcc0b52715a56ee8b6d2fc7cc6908592cea0c
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Settings: Custom lock screen background [2/2]

Patch Set 1:    * port the custom lock screen feature from
                  ics (http://review.cyanogenmod.org/#/c/16914)

Patch Set 2:    * rename some strings
                * use constants instead of numbers
                * fix some code styling issues

Patch Set 3:    * code cleanup

Patch Set 4:    * rebased

Patch Set 5-6:  * code cleanup

Patch Set 7:    * fix comment location

Change-Id: I35e5c70fff423770a03b5bb39d439ebea82dd56a

Lockscreen see through (2/2)

Credit PA

Lockscreen allow homescreen widgets

Big time warning to users about the possiblity of some widgits causing
problems...

Strings clean up

Change-Id: I52a57cb02b58c30bab4759cf295b5c25836cead4

Lockscreen Camera widget toggle

Change-Id: Ic1896fb662b46cef1e2cb0365c60fb825d381102

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