!Bubble Command

Changes to Server.cs involve the !help message
Merge pull request #329 from Joshj5hawk/master

!Bubble Command
Tweak !bubble help text
Switch to FlightGlobals.ship_position for current vessel position
Should either make most positions more accurate, or break things terribly
Merge pull request #330 from butterkitty/master

Added /autoDekessler and /autoDekesslerTimer to server commands
Server will now end process when user inputs /quit while the server is hosting