OP-1218 fix missing "ret ="
OP-1218 format/consmetic/comments fixes
OP-1218 Raise time PIOS_COM_SendBuffer waits to acquire sendbuffer semaphore
Merge remote-tracking branch 'origin/amorale/OP-1218_pios_com_thread_safe' into rel-14.01

Conflicts:
	flight/modules/RadioComBridge/RadioComBridge.c