Bushmaster startup scripts and parameters
Porter: start minscore2 higher
Porter: new RFD900 signature
geosearch: show whole mission
mosaic: show distance and bearing for clicks
Bushmaster: update FTDI ports
Porter: updated parameters
block_xmit: use SO_REUSEADDR
mosaic: obey rotation in view
camera: added aircraft_address option
camera: separate out aircraft port number
Porter: set aircraft address
cuav: added airstart thread
camera: don't start airstart_thread twice
mosaic: prevent dup images 

that could lead to wrong shape in distance measurement
camera: auto-reopen camera and send audible warning
script: startup updates