MP Improvements (2/4):
* Tilemaps now default to general and are less "magic number-y"
* Blocks default to being minable with a pickaxe, and are too less magic numbery
* Fixed crafting in two ways - the itemstack held by the mouse is not size 1x1 anymore and crafting it not blocked entirely after multiple players logon to the server.
* Added a rudimentary block to prevent outdated clients from connecting to a server. This will improve in the next patch.
* Metadata autogenerates for sizes upto 100x100 (up from 3x3)
* Fixed a really wierd Block duplication bug with blocks of size greater than 1x1, where each part of the block could be mined.
* Affix generation should now be nullpointer and bounds safe. Probably.
* Reduced the size of save files by ~25%
+ Documentation
* Removed some old classes