Added some stub code to save our state when the app is paused or closed.
Added some comments and debug logging to dice_compiler to make it easier to understand what is happening in there.
May not run, added some code for division support.
Merge branch 'master' into division, fixed misspelling of 'posotion' to 'position' in rollparse, added some code for division.

Conflicts:
	dice_compiler.py
Added support for division.