Create method to predict email address based on one example

wanted to checkin here, but still need to:

-handle different email patterns for same domain

-move logic out of controller to compare class
Separate out view
Able to handle multiple emails from dataset

this is a bit messy at the moment, lots of p-ing, but i
checked in just to show a glimpse of the process
Create full function version

still need to do more testing and refactoring. specifically,
address hacky way of handling email address with no
corresponding dataset
Merge pull request #4 from vipyne/compare

Compare