UAVStation: Fixed in opt parsing, opt is now int16_t. Caused problems when return value of getopt was negative, this happened on OLinuXino board with a debian.
UAVStation: Added message in default case in options parsing.
LibDCP: Redefined toString methods for ailerons, isAlive, throttle commands.
LibDCP: fixed in pingDrone(), use of bad sessid for command isalive, this fix required to change the SQL query.