1.4.6.4

Optimized the stock toolbar button texture setting (for the flashing of the button)
Removed log spam: UpdateTechlistIconColor
Added whitelist of fuels for the "Fill Tanks" & "Fill Tanks and Launch"
Moved initialization of static GUI stuff into the loader
Fixed memory leak and cause of stuttering in the editor
Added automatic sizing and placement to Build Plans button for UI scaling
Added TextureScale.cs to support sizing & placement of the buttons
Fixed error in loop, was doing a ++ instead of a --
Converted many foreach into for loops
Fixed issue where launching vessel would not properly load kerbals into crewed part