[2/2] Left handed navbar during landscape mode

This patch allows for the navbar to be moved to the left side of the
screen during landscape mode. Left handed people are more used to this
option.

This patch must go with another patch that changes
packages/apps/Settings

Screenshot: http://i.imgur.com/jWqJcEV.png

Change-Id: Ic95e3fda1f55efd2ec908c8d7226e638ec0ab80a
Merge "[2/2] Left handed navbar during landscape mode" into cm-11.0
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>
Revert "systemui: open add tile dialog"

This reverts commit f9951ad9276852b5e6154a54349996a8ddbf1812.

Change-Id: If3211aceab3c92028ab07508c40bfff0813cdf34