Bluetooth: GAP: Handled scan mode during first time BT On

As the discoverability time out concept changed as per the
new design and this code snippet "setting scan mode to
connectable only when endtimestamp is null" is not
applicable.DUT remains in only connectable mode
if user remains in the settings menu.

Change-Id: I7aa2ea7d23c4a47f716e2c0645b2ad73018ada39
CRs-fixed: 714578
Bluetooth: Don't Initiate Connection if UUID not updated

 - if UUIDs are not updated don't initiate profile connection
 - add new profiles to already existing list
 -  don't delete profiles from the existing list

CRs-Fixed: 717840

Change-Id: Id71a5aad59f4004c262f3ad17f34fa0574654170
Bluetooth: Enable Page and Inquiry Scan.

When Bluetooth Setting is in foreground enable both
Page Scan and Inquiry Scan.
Changes made to make device both in connectable and
discoverable if user is in Bluetooth setting menu.
CRs-Fixed: 753990

Change-Id: I2d72ce3192f6b7fa9eb6beb5a175a3e732dac5a8
Bluetooth: GAP: Reset Alias name during virtual unplug

As per this fix Alias name get resetted when hid virtual
unplug initiated from HID device.

Change-Id: Idb1cba447072fd70c21cfecef8776b2baaf730bc
CRs-Fixed: 754689
Bluetooth: Refresh UI after checkbox is Unchecked.

 - Refresh list of auto-connectible profiles when
   Checkbox is unchecked in disconnected state.

Change-Id: Iddca04cbb06262556ea7decb39279df26e358eb6
CRs-Fixed: 758480
Bluetooth: Security: Add Null check during pairing cancel intent.

Added null check, so before posing event we can restrict events,
if cached device list is empty

Change-Id: I458d181abe5eec2497b80b1713ddbc3502b79786
CRs-Fixed: 546364
(cherry picked from commit 7d7222c3e5c1054b4e2f3e59cc40cb182a72b040)
(cherry picked from commit 8ce523155dd030d82c32cf502d317023b017645b)
(cherry picked from commit 938686e749bca911e5f63150223116d1c381da8e)
Bluetooth: GAP: Handled Null pointer deference in unregisterReceiver

Handled Null pointer deference in unregisterReceiver event of
pairing dialog

Change-Id: Ie0d0561cb3c0f09a018e1aeb20579700c6e8d783
CRs-fixed: 761872
Settings App: Fix to resolve NULL pointer exceptions

This fix resolves any NULL pointer exceptions and
Array Index Out of Bounds exceptions seen in
Settings Application code space.

CRs-Fixed: 760115
Change-Id: I8c2b7b8e19d362a5c5789d8693bcd3656c32e38d