Add Console Entry point to package for command line usage

[jacobm001]

I added an entry point to the setup file which will allow the pip package to be run as a standard command line application. This removes the need to call either python or the roll.py file directly.

[coveralls]

Coverage remained the same at 99.419% when pulling 68e40b0 on jacobm001:master into 537613f on cro-ki:master.

[olinox14]

nice, good idea