Some 31.18 offsets, invalidation feature for memory.xml

31.16 windows support, minor fixes, range for dfliquids

31.14 Base Windows support. Added creatures to the mix, although they…

… are missing some of the more interesting bits.

31.13 Maps support, internal changes

Fixed some memory leaks and added cleartask tool.

Cleartask tool added.

31.12 support

31.11 support

31.10 and 31.09 support, limited to maps and materials

Update for 0.31.08