Removed bad comments

I inadvertently checked in code with some code commented out. Didn't
need it so I removed the code.
Renamed roller to diceRoller

The original name wasn't very descriptive so renamed to diceRoller.
Trying to get the DI working so I can test

I'm working on adding the DI stuff so that I can mock out the rolling function.
This check in will break the build, because I was too stupid to do it on a
branch.