2 new additions to ServerInfo page

- Added lastPlayerActivity, a unixTimeStamp.
- Added universeSize, calculated in Megabytes.

Only call GetUniverseSize() during the JSON request

GetUniverseSize() will only get Vessels and Kerbals
Update README.md for 0.1.4, remove shortname setting.
Show decimals in universeSize
Fix position updates for kerbals
Fix spectating bug, change KillVessel to work on packed vessels as well.
Merge commit '4c24b05'
Fix incorrect mod control data being sent after a new file is generated without restarting the server.
Fix the orbital colour preview on the first start with DMP installed.
Run subspaces at the slowest players requested rate, reduce subspace minimum rate to 0.3x real speed.
Make the clients request a more accurate subspace rate, and allow the warp clock to go down to 0.3x speed if a client gets ahead.
More correctly acquire and release control locks.