Mission Editor v released ME

List of changes:
1) added mission pilot backup feature - if you experience crash after mission start due to "underground pilots" or sudden return to debriefing screen while losing entire flight or pilot is killed due to other reason, start Mission editor, click "Open debrief file" and you will be presented wih option to restore your last mission pilot (backup is created automatically by Mission editor before mission start after clicking Save button). Just do not forget to run ME and click Save button before each mission.
2) added buttons for inserting new pilot, either before or after current pilot,
3) fixed possible bugs in file loading routine,
4) fixed wind speed conversion from kts to m/s - winspeed is properly converted to dynamic weather file now via Weather mod. In former versions of Weather mod the wind speed was multiplied by two.