Renamed some state names
Merge branch 'gfx_Tristan' of https://github.com/TheDizzler/space-union into gfx_Matthew

Conflicts:
	Client/Controllers/ShipSelectionScreen.cs
	Client/Tools/AssetManager.cs
	SpaceUnionContent/SpaceUnionContent/SpaceUnionContent.csproj.PSM.cachefile
	SpaceUnionContent/SpaceUnionContent/obj/PSM/SpaceUnionContent.csproj.FileListAbsolute.txt
	SpaceUnionContent/SpaceUnionContent/obj/PSM/cachefile-{69F49597-D779-4577-9103-14C2802D7E0F}-targetpath.txt
Added custom designed button skins, created ScrollingBackground.cs, provides animated background image.
merged with Matt