Change Trainer show action and view to choose_starter, update trainers controller  test from show to choose starter
Update select_starter feature test to refelct change from show to choose_starter
Update trainer sees bulbasaur feature test to reflect change from show to choose_starter action
Update trainer_spec tests to reflect change from trainer show action to choose_starter
Merge pull request #22 from Steveo1485/change-trainer-show

Change trainer show