Updating descriptions and language for stock missions
Removing incomplete Duna II mission
Correcting first mission language
Merge pull request #1 from azadam/master

Hey azadam thanks for the changes, but MissionController no longer uses the single missions anymore.. These are just left over code that Nobody has never got rid of.. You now have to edit the Mission Packages (.mpkg) to have any effect on the current missions.. And they were not included in the GetHub Repo.. I will remedy this situation and make sure to add them all to the Gethub as soon as possible.. I will accept the pull request for you can see this.. But the changes will have no effect on current mission structure. :(