Fix for framework reboot on format of SD card

MountService is not aware of /storage/emulated/legacy path which is
causing the issue on ExternalStorageFormatter service. We are getting
the a list of non-emulated SD cards and format the first one .

Change-Id: Iba1a9f6e40499f7f6fb095a5ee4e711b02bed439
CRs-fixed: 489037
Bluetooth: HID: Add support for Set Idle and Get Idle Commands

This patch provides an interface for application to send Set Idle
and Get Idle commands to remote HID Device. Support for these
two commands was missing from exisitng code, so existing code
design is reused to add support for these two commands.

Change-Id: I548362cc328498920b2dae740f1a76b2cc2d6a67
CRs-Fixed: 522511
Keyguard: Set WIDGET_CATEGORY_KEYGUARD when AppWidgetHostView is created

Allows the default lockscreen widget to inherit the keyguard widget
host category.  Without this, only widgets added through
KeyguardActivityLauncher are assigned the correct
OPTION_APPWIDGET_HOST_CATEGORY.

Change-Id: Ic97818d85ca5f00da0ce43bb36006d66a6935363
Hide new non-standard APIs and permission

These were breaking builds due to the public API modification

Change-Id: I603fcf0601f40fb315086859aa03ef5b7ec39248

Conflicts:
	core/res/AndroidManifest.xml
Wipe and re-create database on downgrade.

Not a very common situation but should fix some errors that could
 arise from flashing an old ROM over a new one, without wiping data.

Change-Id: I27f2a00396761105987830921bb3f8cb339d2171
Framweworks: add filter method for supported phone features

which will be later used for any settings arrays which need to be
filtered out.

Change-Id: Ifc941a8e0834526b1fa95843beee2c6eafe2e120