moved model stuff to its own class, added rocks
added a new rock type
fixed a few errors with lists, added new files to makefile
Merge pull request #20 from harwooja/Master

fixed a few errors with lists, added new files to makefile
Lava particles turn to steam when they hit water. Added a fog option by toggling g
changed steam implementation in particlelist and fogfilter to glint
Merge pull request #21 from harwooja/master

Updating Anagh from Master