Avoid SystemUI crash due to NPE

BaseStatusBar.createNotificationViews() returns null
when it reports handleNotificationError(), leading to
a forced crash of the misbehaving app. However, it
should not add a null object of Notification.Entry
since it will also crash SystemUI (crashing at compare).

Change-Id: I86678c8024e931420b0fbab1f36b330e7e75d581
[1/2] frameworks: Adding old-school (JB like) battery percents style
due to its better visibility.

Also added "No battery" style.

Added percents visibility while charging and
colorizing percents while charging

One selector made obvious

Removing unnecessary code

Setting green color for text 90+% charged

Now bolt color means color of circle battery, not percents

Fixing percentage color while charging for "text only" style

Fixing percentage color for JB style

Adding green percents color when charging and >90% for circles with percents too

Including Juba's changes regarding battery tile with no battery in statusbar
and styles order

Line to long and use static reference

How does it look like:
https://dl.dropboxusercontent.com/u/66673431/BattModPercentScreen1.jpg
https://dl.dropboxusercontent.com/u/66673431/BattModPercentScreen2.jpg

Settings change: https://gerrit.slimroms.net/#/c/5755/

Change-Id: I7505c7e35c252a0fac0bd37db4be33bbff89ef41
Framework: Custom Tile Double-Tap (1/2)

Change-Id: I50461ddea85cb03e5c04b43e6a6b09411dba9a0d
Framework: Fine SeekBar control

Allow user to move their finger in the Y direction
	to change the speed at which the seekbar will seek
	on moving their finger across the X direction

PS2: increase time constraints by a bit
PS3: decrease distance constraints, lol

Change-Id: I1fc8db16820fd3615436ee0be6ce0bf4394c0808