First part of create group test. Has not verified creation yet.
Added a test to test group creation
Fixed style issues and added the delete group function
Changed test_adding_new_group method name to test_that_user_can_create_and_delete_group
Fixed issues in final code review
Merge pull request #129 from justinpotts/add_group

Adding groups test
Added assert statement to check if deletion happened
Merge pull request #133 from justinpotts/add_group

Added assert statement to check if deletion happened