Revert "halo: hide when no notifications option"

This reverts commit 1075ce5502eb031c99a737a7e24aeac18cd8c3cd.

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java

Change-Id: I90e708277f3ca0b5f7bbb303859ad67f0c7b3f21
HALO Mods (1/2)
    * Animation Controls (options)
    * Long press status info

[part 2 in android_packages_apps_Settings]

Change-Id: I96e94fee0bab3f6d90d3c33c65385642324eb60f
Changes to fit new HALO Mods implementation

Change-Id: I340b2cf0293d2605300c8d51af28ecbab9b968e0
Show status bubbles only when idle

Change-Id: I09a30eb56441ec07433a7b1183c0592cdbac8f02
Launch floating notifications from notification panel (long click)
 * Status bar - long click on notification select 'floating mode' option
 * PIE - long click on notification, auto launches floating window
fix derp in floating notification launch
Notification long press fix