Revert "HeadsUp: option to launch in floating window (1/2)"

This reverts commit 7497ea6ecda371dc76ea48de05f79c29e508372f.
Launch Heads Up in floating window [1/2]
    AICP'fied.
    To make floating window to work for Hover and Heads Up, notificationhelper
    interface is modified to include a third parameter to indicate whether it's
    called from hover or not.
    To make Heads_Up floating notification work separate from Hover,
    a third parameter is added to the notificationhelper to indicate whether
    we are called from Hover.java. This changes the call.
    PS2-3: Fix authorship
    PS5: separate hover change.
    PS6: change commit message.
    PS7: Merge with Hover change, fix setting preference and code cleanup.
         To make settings work, don't use Boolean with CM CheckBox preference
    PS8: autorship

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationHelper.java
Fix build

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
Revert "VolumePanel: Rework design on top of Hover"

This reverts commit 8d556e513529c993d2f6fa85add79fdcc0b83e51.

Conflicts:
	core/res/res/values/colors.xml