Clean up, simplify and fix AlarmTile class and logic

This commit cleans up the AlarmTile class by removing the unnecessary
listener on the alarm intent. It now listens only to the next alarm
setting value, which was fetched after receiving the intent anyway.

These changes also fix a bug that would cause the tile to not show up
after some actions, like reordering the tiles due to the visibility not
being set on tile creation.

Lastly, some minor code styling issues have been fixed.

Patch set #2: collapse onNextAlarmChanged into onChangeUri, remove
mEnabled, use TextUtils to check for string emptiness and mark
updateQuickSettings explicitly as public.

Change-Id: Ic5871a9cc4874f33181dfac14e25a89499c182f2
Allow purging of asset bitmaps

It seems that neither CM9 nor CM10.x includes the actual framework-side
code to facilitate user-controllable bitmap purging. Odd, since the
CyanogenMod Settings app in both CM9/CM10.x includes the option.

Backported from original Gingerbread commit:
http://review.cyanogenmod.org/#/c/3908

Original description:

Allow the system to reclaim more free RAM when needed on 'low' memory devices
(e.g. Droid/Milestone) that are struggling with 2.3. This option enabled
efectively restores the froyo way of forcePurgeable BitmapFactory asset
handling.

Change-Id: I6a3b8a05b7be9c214a8548d6c6d1621e6533a1e0
extend PreferenceActivity for title text on a single pane mode

startPreferencePanel() ignores titleText on a single pane mode
this commits extends PreferenceActivity by adding EXTRA_SHOW_FRAGMENT_TITLE_TEXT to intent

ported from CM9, http://review.cyanogenmod.org/#/c/14919
AOSP part verified, but not merged

Change-Id: Ie0702dc20b17504148f4da9cc83a6d7865d95423
installd: Delete cache properly for devices using datadata partition

The java side already checks /data/data for free space but installd
still checks /data causing it to never reap the cache (because it
thinks that enough free space is available.)

Change-Id: I736af6ff7ea0c8ae07900168f6b8ac2f7a4dbe0b
Highlight the clear button in the recents view when clicked

This commit also makes copies of the ic_notify drawables for the recents
panel to avoid any collisions with possible future changes to the
notification bar UI. (The pressed state drawable was already an unused
leftover resource).

Change-Id: Ib0d5982e80771b6639efd25ac792ebfe9f1ca1c5
QuickSettings: Allow custom off-status strings for translates

- GPS
- Torch
- Wi-Fi AP

PatchSet 4:	Removed all translations.

Change-Id: Ibc7fa50c8b1ee87170bd4b58866e45c63655a192
Wi-Fi: Pass default country code to driver

This patch reverts partially the change http://review.cyanogenmod.org/#/c/28918/8, and
passing the default country code ("GB") to the driver instead of null.

Change-Id: I7d7115155a0a52261931ffaddaf35f316d095800
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>