Lite-Mapper beta-0.2.1

This should probably be a major release, but nothing massive has changed at the core of LM. Many minor things that weren't working before (that somehow evaded testing) are now fixed. Plus several additions.

• Fixed several minor bugs.
• Added fog class.
• Added player animation shortcut function.
• Slightly modified syntax on a few features.
• Added the ability to import multiple diffs.
• Added new minor functions.
• Added more constants.
• Added shareable environment exporter.