Seed history is now saved in seeds.txt.

A seed can be used using the parameter "-seed".
seed.txt is saved in the same directory as game.cfg.
If not provided, prints the chosen seed during runtime.
updates documented help by parser README
added parser.help discriptions
stupidity bugfix. i need to sleep.
commit 4a9cd92f98d1aa6f1f33799643f7cb1a8bd7c4e9
Imports urandom from os instead of posix.
Removes a useless import
add e4069d1870e4739df4b8a68460a466e614c5cf3b
Removes (again) Thumbs.db.
Merge branch 'master' of git://github.com/BertrandBordage/Minecraft

Conflicts:
	Thumbs.db
Merge branch 'master' of git://github.com/ronmurphy/Minecraft

Conflicts:
	main.py
	savingsystem.py
Code reorganization. Textures moved into textures/ dir.
Code reorganization. Moved *.wav to sounds/
Moved sounds and textures to resources/ dir
Remove duplicate stuff
Adds World, originally to optimize spreading mutations (aka grass expansion).
Serarates World in another module.
Merge https://github.com/boskee/Minecraft

Conflicts:
	blocks.py
	main.py
Use os.path