Settings: preferences use keys, not ids

Change-Id: I23fad40f85235db1fd2c5724ba9d3580828b14d7
Settings: modify AOSP RU translation

Changed "data_usage_menu_metered" and "data_usage_metered_title" to
state it configures Mobile hotspots, not something like APNs.

Change-Id: I40db1da7d6f4a801de5a06c6a5790580da080ebd
settings: Remove "mobile plan"

 * Useless menu item.

Change-Id: I0b35017cb9a52600cde5d31065f007210f916a41
P2PSetting:Avoid p2p_find on group removal event

Immediately after group termination p2p_find is being issued
from settings and this causing issue whenever user sends
connection request immediately after group_removal_event.

Change-Id: I6ae90a1d710e0e977a1dbc171398fd270dc30183
CRs-Fixed: 622597
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