add selection list of celestial bodies for calc TWR
save celestial body setting for drag
a bit of a refactor, and show the gravity value of the body
fix wrong option name
fix body list window not shrinking when the list has less items.
indent planet list, making moons easier to tell apart
use body.name instead of body.theName
Merge branch 'bodylist'

Conflicts:
	Plugin/Gui.cs
	Plugin/Settings.cs
Merge branch 'branch-0.5' into development

Conflicts:
	Plugin/Settings.cs
move the body list window to the left of the main window when there's
not enough space.
remove gravity value, and tweak a bit the layout.
fix exception flood if settings.cfg has a invalid mode number.
stock toolbar support
fix two NRE
add AppLauncher icons
show mouse position in the debug window, cuz I wanna.
VectorGraphic and related classes refactoring.
fix vectors twitchness when changing mode or direction.
refactor
add KSP-AVC link