Update ExLaunchPad.cs

Tidied up UI a bit
Renamed SurplusLiquidFuel to JetFuel
UI widened to 600px
note renaming of resname variable - relabel used to be resname, but resname is now something else, so be very careful if copying code from old version to new.
Merge pull request #17 from evilC/patch-2

Update ExLaunchPad.cs