Linux: Changed busy-serial-port error message to reference modemmanager
Linux Packaging: better compatibility with .deb standard
Advanced Param List: Fixes #153 Add ranges/defaults for params to view
MAVLink: Fixes #310 tlogs to be compatible with MP/MAVProxy
Terminal View: Fixes Terminal to not show the MAVLink connect button

Fix up Terminal View so it disables the connect button in terminal if connected to an active MAV to make it more clear that you need to connect below.
Also fixed the issue of not remember the last save port.
MAVLink: removed accidentally added member variable