Improve notification shade collapse code.

- Collapse after dismissing the last notification
- Avoid duplicate code paths for collapsing
- Improve variable naming according to AOSP review suggestions

Change-Id: Ic6f26a61f263c5beebbcc9725fe8914d3858576f
Make notification-shade-collapse-after-dismiss behaviour configurable.

Change-Id: I1be0be2753b479e6d2e4fc8e17d971d03ce01bb7
Frameworks/base: Update italian translation

	Changed AOSP strings for SELinux

	PS2: ported strings to custom file cm_strings.xml
	     (see http://review.cyanogenmod.org/#/c/45727)
        PS3: Cid trigger
        PS4: Cid trigger

Change-Id: Iedafc7f598a80682dcabce4c71fb9c921bf3da25
Enable Estonian language

AOSP translations are present, but not activated

Change-Id: I8cf7d0c128a5f12da5440882e6f2e8e91ccf57c5
Merge "Frameworks/base: Update italian translation" into cm-10.1
Merge "Improve notification shade collapse code." into cm-10.1
Merge "Make notification-shade-collapse-after-dismiss behaviour configurable." into cm-10.1
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1