New and improved jf-common

- due to jactive device inheriting from jflte being bad, jf-common
  has been resurrected
- mostly copy from jflte, with makefile changes

Change-Id: I8c4ac86b06a38eb4a6fa3bf290a71c809ee1623a
fix typo

Change-Id: I9ea0379e70ad56df2d17ae7d5992fde1c7f7be5d
audio: lower speaker volume slightly

Change-Id: I6d450c9c978e04a39987b48bf301b1049c8fa1ac
camera: don't force antibanding

Change-Id: If540216cde15f5d81f34efa45a6d6c87fd547a56
Added lib/libsensirion_j1.so to common props

- this file is needed by jactivelte and jflte

Change-Id: I891f7b2a6a3f4651582812995f182082ced156a7
Added jactivelte modelnumber

Added jactivelte to show buildnumber
instead of "uknown model" in options

patch set 2: used space instead of tabs

Change-Id: I783a42f7a4b2f26ef99364eb729fa08dc3cd4129
Merge "Added lib/libsensirion_j1.so to common props" into cm-11.0
Merge "camera: don't force antibanding" into cm-11.0