Develop: deleted unused files
Feature-Required Task 1: added FlickrFetcher files

Added the three required FlickrFetcher files, and added my own
API key.
Merge branch 'feature-required_task_1' into develop
Feature-Required Task 2: added a UITabBarController
Feature-Required Task 2: created two UITableViewControllers

Created two table views and hooked them up to the tab bar controller.
Embeded the two view controllers in a navigation controller.
Merge branch 'feature-required_task_2' into develop
Feature-Required Task 3: deleted stub code
Feature-Required Task 3: added cell reuse identifiers
Feature-Required Task 3: edited title of FlickrImagesTVC
Feature-Required Task 3: added an ImageViewController with segues
Feature-Required Task 3: obtains unique tags
Feature-Required Task 3: table view has appropriate number of rows
Feature-Required Task 3: rows have capitalized titles
Feature-Required Task 3: rows have subtitles
Merge branch 'feature-required_task_3' into develop
Feature-Required Task 4: segues to image with tag and sets title and photos
Feature-Required Task 4: image with tag displays images correctly
Feature-Required Task 4: image now displays correctly
Merge branch 'feature-required_task_4' into develop
Feature-Required Task 6: photo zooms correctly to show max