Uses the place-then-paint method to make colors. To get a regular color,
place some Moreblocks super glow glass, then right click on it with some
dye to color it. To get the pastel colors, right-click the colored
glass with Moreblocks' "sweeper" to "brush off" some of the color. Do
it again to change pastel to faint.
Right click a pastel or faint with some dye to re-color it. You have to
dig and re-place if you want to go darker/more saturated again.
Add alpha channel support for latest git clients/servers
(should still work fine on old clients/servers too).
Requires that the client use shaders to see the effect.
Also, removes the calls that create rendered inventory cubes - those
calls are obsolete and should not be used in production, as they prevent
the engine from rendering an actual cube when an item is dropped.
