Add spongycastle

Change-Id: Ifabb9446e14468f1e376d3da9ada2f94369a3284
Add BluetoothExt repository

Change-Id: I33706c7304068c3b14c27ed739206d1d55bde4b5
Add CMAccount

Change-Id: I3f6bca942bf7a07a979a5170b9896765d6f398ff
Update upstream refs to android-4.3_r3

Change-Id: I4e6cddf8875955350d3d9c7fb90360b8d7f07629
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2