Settings: Add setting in security for sms message rate alerts from CM10

If we add a preference to control "sms_outgoing_check_max_count" we can
control the message rate by writing to Settings.Secure.SMS_OUTGOING_CHECK_MAX_COUNT.

Currently this is null so it defaults to 30 sms messages in a 15 min period.
Creating and writing this preference allows us to control the sms rate interface.
We can also modify timeframe as well.

This was added to security instead of Mms since this isn't just rate limiting the
sms application.  This rate limits any application that sends texts.

This also creates a new category called Application Security.

Change-Id: I47a2f8d136a4399ebf5477dbd5bb23d83b5693cf
Update the ic_grabber drawable with a holo version

Replaces the old gingerbread drawable with one that better
fits the holo design language. Also adds an xhdpi drawable.

Change-Id: I4365f7184f236c6e916015413f9a4f122b8e743c

Conflicts:
	res/drawable-hdpi-finger/ic_grabber.png
	res/drawable-mdpi-finger/ic_grabber.png
	res/drawable-xhdpi-finger/ic_grabber.png
Update the ic_grabber drawable with a holo version

Replaces the old gingerbread drawable with one that better
fits the holo design language. Also adds an xhdpi drawable.

Change-Id: I4365f7184f236c6e916015413f9a4f122b8e743c

Conflicts:
	res/drawable-hdpi-finger/ic_grabber.png
	res/drawable-mdpi-finger/ic_grabber.png
TouchInterceptor: Fixed image cache problems
Fixes the problem shown in this video:
http://youtu.be/piqHych4nJY

Change-Id: I42f35ddd6677afd10187a7c5a390287acd3f39a9
Settings: Make it clearer how SMS Limiting works and add 500 messages option

Change-Id: Ia7458d7e7cde1cfbb6641d4b05fd9caf59d21db8
Update the SMS sending limit instantly (2/2)

This commit also shortens and simplifies the preference summary text
considerably.

Patch set 2  : Slight rewording
Patch set 3  : Another minor wording change

Change-Id: Ic7ed803e22ead8c41346a66edc6db65cee93c39a