Settings: Mock SMS (3/4)

This change brings the possibility of simulate the reception of SMS on real devices.
This change includes the settings to enable/disable the mock SMS feature.

Ported from http://review.cyanogenmod.org/#/c/23018

Patchset 2/3: Rebased

Change-Id: I8818995147c41db261d9c9506c1741ed99ef581e
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Conflicts:
	res/values/cm_strings.xml
Settings: Display up caret for Status and ChooseAccountActivity

Change-Id: Ia9d51b53df8a3eb4c1b9dee1aeefb0b74eac0fde
Fix one NPE in tethering setting

Once we not declare BT feature, go Setting->more->tethering
will trigger this NPE.

Change-Id: I4736e7bade261475acda74e26250a81452018ffa
Signed-off-by: Jianzheng Zhou <jianzheng.zhou@freescale.com>
This fixes crash caused by null pointer

The crash is caused by a null pointer.
This patch prevents the dereferencement of the pointer when null.

Change-Id: I7a5aa23342bf7e6ba072c8bd2533ae574e2d0150
Author: Ovidiu Beldie <ovidiux.beldie@intel.com>
Signed-off-by: Xiaokang Qin <xiaokang.qin@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 42641
Settings: slightly adjust PIE default values

to fit frameworks base change

Change-Id: If213abd25744472c5d2f93a2b146dae6c12f4017
Settings: dslv do not allow to add recent, home, back main action twice

to have it twice causes problems on navbar pie and wherever in future
home, back, recents is used when the system disables this buttons and
more then one per feature exists. Due that a user do not set eg
2 home buttons on navbar let us block it and give the user a hint
that this is not allowed. All other actions can be added twice

Change-Id: I729d166139403e65b948f45acf36a47b7de7eb4c

Conflicts:
	res/values/slim_strings.xml
Fix USB settings title

Change-Id: I8aed549a7aa9b6f9608144eb06357033eca31756
Settings: remove always transparency mode navbar/statusbar 1/2

problem is that the transparency on most app totally break due
that a lot apps do not draw behind navbar and statusbar. Nearly
all user never use always mode and just use it on launcher
and lockcreen. So let us remove it

as well a bit cleanup in arrays and strings

Change-Id: Ic6d65d96a6665071689f3bc607c11aeadd29d8b8

Conflicts:
	res/values/liquid_arrays.xml
	res/values/slim_strings.xml
	res/xml/navbar_style_dimen_settings.xml