systemui: open add tile dialog

Shows the "add tile" dialog QuickSettingsTiles activity when the user press
the add tile button in the system bar

Change-Id: I974f50806c724a400485de54589accbdde4bf70d
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
BlackList: allow block all calls (2/3)

Change-Id: Ic3d8e96d6842d80db91dde5c2606ff2d1fe0d19f
Merge branch 'cm-11.0' into mokee