WhisperPush : Fix crash when going in background

When the activity is not in the foreground mid registration, the
service crashes, since the builder was never initialized.

Another issue is, when the activity is in the background, the notification
is never updated since all ui updates are sent to the activity instead.

This patch resolves both issues

Change-Id: I89f78b8bf357bc19c1aa1ebe8b81fc7e8eea48a7
Automatic translation import

Change-Id: Ib715e94a879501a825f06e1af72dd5f5492ed345
WhisperPush: Add all possible variants of WP registration number.

  Some networks will show incoming sms as properly formatted, other
  networks (mainly Verizon) will trim the leading country code (1).

Change-Id: I99613d760325b35bf5a531ffff00e692c59d3b6d
Automatic translation import

Change-Id: Ia2aae2753d51956b9efdb29d116412345da1225d
Merge branch 'cm-11.0' into stable/cm-11.0