Updated README.md for v3-0-8
More 3-0-8 edits
Updated list of contributors
Moved README.md to F3 folder

Previously this file was always taken out of the folder for release
packaging; this is now going to be left inside the F3 folder so mission
makers can easily see what version of F3 was used to make a mission.
Merge pull request #2 from ferstaberinde/dev

Dev