Added toolbar indicators popup (drop down) showing extended information.

Send mission item vehicle trashing float values

Fix telemetry radio RSSI calculation for SI1000 based modems

New item uses altitude from last item

Redesigned setup buttons to save space

Explicit raw/cooked values for Facts

Add virtual joystick setting.

Also reflow settings pane to take less space

Remove MavCmdPreflightStorageCapability

README.md: Explain why Qt distro packages can't be used

Reflow flight mode layout even when joystick control is enabled

Mission Item raw/friendly edit support, plus more [merge after Stable 2.8]

Auto connect support [merge after Stable 2.8]

- Pervasive change to automatically connect to known board types
- Lots of additional changes along with this:
- More exposure of objects/properties to Qml
- Much restructuring in LinkManager and LinkManager clients

- Pervasive change to automatically connect to known board types
- Lots of additional changes along with this:
- More exposure of objects/properties to Qml
- Much restructuring in LinkManager and LinkManager clients

travis-ci ubuntu trusty

Also friendly editor for MAV_CMD_NAV_ROI and MAV_CMD_DO_SET_SERVO