More warning messages.
Added comments.
Moved location of bitmaps.

I hade some issues with open-tx when the bitmap's was placed in the root
bmp-folder. It seems like reading the images from there were really
slow, and the sounds started to stutter every time the telemetry screen
was on. Moved as a temporary meassure.
Merge pull request #11 from lvale/Arducopter-Position

Arducopter position
Initial work warning-log

Initial work on a telemetry screen to show the (latest) warnings
received from mavlink.
Fixed a problem with the merge

Fixed a compile problem with latest merge. Need to remember to restart
arduino-ide after merges...
Add possibility to disable sensors

Added the possibility to disable the response to some of the sensor
requests.
Disable status-reports for some messages

Disabled status reports for some messages like "Calibrating barometer"
and "GROUND START".
Don't send custom_mode until we know

Try to minimize the number of faulty mode-reports at powerup.
Added timestamp (time since message) to log-screen.
Refactor status message code
Changed layout and added image for gps-status
Rename
Added global flag for new messages
Refactor.
Better handling of gps hdop high/unknown.
Implemented byte-stuffing
Removed dead code.

Got several tips for this one.
Update README.md
Update README.md