HOVER [1/2]
Notifications refined:
The way you handle with the incoming notifications defines how much you enjoy your device.
Hover shows you those notifications when you need them in a beautiful card that briefly appears
on your screen. For a detailed look of the notification, you can swipe down to expand some more
info, or you can tap it to open the related app using PA’s floating mode.

Introducing Hover:
https://plus.google.com/107979589566958860409/posts/DC4KyDd1cDC
https://plus.google.com/107979589566958860409/posts/BtWoGpNd8Fq

This is revision 4 of the original base by @D4rKn3sSyS . Hover works by moving the
notification view from statusBar container to Hover’s one and re-themes notifications
in the process. When hover is active it is the owner of the view, special care must
be taken to not  manipulate the statusbar reference while hoveris active.
Hover’s view state is managed by a handler based timer. When any touch event is received
or a gesture completed the timer is restarted, upon expiration of the timer hover is
hidden or will show next notification in the list if there is one (or more) to show.
The timer along with animation listeners  regulates the rate at which Hover can process new
notifications, acting as a spam filter for noisy applications. Upon first run a dialog is
displayed explaining Hover to new users. More infos in code’s documentation.

Todo:
- Swipe up to dismiss only the hover window not the notification in status bar.
- Transparent support has been tweaked a bit but needs a more proper solution
- Edge gap fix for Theme Engine themes overriding notifications draws
- Long press action(s)
- MInor tweaks noted in the code’s comments

CONTRIBUTORS:
@D4rKn3sSyS
@BigBrother1984
@Anu6is
@beerbong
@aaronpoweruser
@David96
@linuxman94

Drawables by @arzbhatia

Change-Id: I787c048800fbc90465a107ea8655bd2a0842df51
Signed-off-by: Jesus David <jesdga95@gmail.com>
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Signed-off-by: Curtis Mayers <curtis.mayers@gmail.com>
Signed-off-by: Yamil Ghazi <stevewatersy@gmail.com>
Signed-off-by: Aaron Gascoigne <atlrudeboi1@gmail.com>
Signed-off-by: David L.-W. <david.leppla.weber@gmail.com>
Signed-off-by: Evan Anderson <evan@thelinuxman.us>

Conflicts:
	packages/SystemUI/res/values/n5x_dimens.xml
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
Frameworks: Store dialpad showing state (1/2)

Change-Id: I56cd606188d844f7e5b734d119d8238a830a4df2
Framework: Fixes and add missing values in HOVER implementation

Change-Id: I4a09fca1e85929661580e86c34a7286593158b9d
Floating window: Fix possible NPE
Avoid possible NPE if app provides no interface such as pushbullet's
test notification & other apps which provide one.

Change-Id: I5911cbe519630fe5ef1becad6195582c10ce2502
PEEK: Sensors improvements

- Bring some fixes to the algorithm thanks to @D4rKn3sSyS
- Cleanup

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>