Removed unneeded whitespace
 Added test cases for powerball and mega millions

 In model_tests file test cases for mega millions and powerball models
 have been added.
 Boilerplate code for lotto model classes added.

 Boilerplate code has been added for each model that will be in use.
 This code should handle common traits found in all lotto objects.
Merge pull request #1 from incazteca/development

Development