Start of disguising block extenders as other blocks
* Use the linker to select the block type you want to disguise as and then right click a block extender to disguise it as the linked blockSome visual and bug fixes
Fixed wireless block extender texture
Added a Gui element for disguises
Linker can now undisguise blocks
 * Right click a disguised block extender with an unlinked linker to clear its disguise
 * Right click the air with the linker to unlink it
Merge pull request #29 from squeek502/rendering

Block extender disguising