Working functional test for deleting a row in a table view
Added delete_cell method. Should address #110
Added deleteRowsAtIndexPaths:withAnimation method with warning to use delete_cell instead.
Removed AccessibilityLabel on tableview cells since it's set automatically by the title.
Added functional test for deleting a cell with an animation.
Added helper method for calling tableView:commitEditingStyle:forRowAtIndexPath
Update index_paths var assignment per @jamonholmgren's advice.
Removed explicit return statements in table_data.rb.
Merge pull request #111 from markrickert/table-deletion-and-tests

Table deletion and tests