Bluetooth: Release pan proxy object while coming out from tethering menu

A case where user is going into tethering menu & coming out repeatedly
(2000 iterations) irrespective of Bluetooth state(ON or OFF). Setting
application get crashed after 1386 iterations. Each time TetherSetting
& BluetoothPan object were leaked, because connection of the pan profile
proxy to the Service was not closed by tetherSetting while coming out
from tethering menu. Releasing the pan proxy object while coming out
from tethering menu to avoid memory/objects leak.

Change-Id: I06a5e1ed37a024695fddb1e95f62b72fd56510d3
CRs-Fixed: 622489
Settings: Ignore second button
Fixes error message during pairing of HOGP devices

When incorrect pin key is entered by user in
the pairing pop up while pairing with a HOGP
device, no error message regarding the failure
is displayed to the user.

CRs-fixed: 618905
Change-Id: I1a5a8baf9ef6c71bf285a28b3e1839fe5ddbca95
Bluetooth: Increase allowed duration to connect to a profile

This patch increases the duration allowed between the first device
connection attempt (immidiately after bonding) and profile connection
after service discovery from 5 seconds to 30 seconds to allow
HOGP connections for slow connection conditions.

Change-Id: I5b17bd0bd2b560709e6e67e2d83f9bca7ea2509d
CRs-Fixed: 612105
Packages: Fix for SAP turn ON/OFF fails issue.

Turnig ON/OFF SAP repeatedly when WIFI is ON results
in command CMD_SET_AP being received in WifiStaEnabledState
of the state machine, which will not be handled and because
of this SoftAP is not turned ON and we receive no events
thus the check box remains greyed out/disabled.

To resolve this wait for WIFI_STATE_CHANGED intent before
re-enabling the SAP.

Change-Id: I1a37ac6406ea5e342d6dcb80654c2728fa447e57
CRs-Fixed: 525872
Packages : Fix for Softap turn ON/OFF fail issue.

If Softap is enabled using third party applications which make use
of WifiManager APIs, Softap enable fails. This is due to improper
handling of Softap State change event.

To resolve this issue, handle the Softap state change intent with
proper initialization of variable "mWaitForWifiStateChange".

CRs-Fixed: 634896
Change-Id: I63f8845ec3e8ebfa8ec09a7b1a1bc4ee175336cf