PTM_U: Implemented the GetShellState function.
Silence a few -Wsign-compare warnings.
AC_U: Added a stub for GetWifiStatus
Merge pull request #219 from Subv/ptm

PTM_U: Implemented the GetShellState function.
Merge pull request #231 from purpasmart96/serv_ac_wifi_status

AC_U: Added a stub for GetWifiStatus
Merge pull request #236 from rohit-n/sign-compare

Silence a few -Wsign-compare warnings.
PTM_U: Added a stub for GetBatteryLevel & GetBatteryChargeState & GetAdapterState
Merge pull request #230 from purpasmart96/hb_serv

PTM_U: Added a stub for GetBatteryLevel & GetBatteryChargeState & GetAdapterState
Thread: Fixed to wait on address when in arbitration.