Reformat several bounty views to use 80 character lines and use Ruby 2-space indentation.
The bounty#edit page now returns to the same page and displays a list of invalid inputs if the user tries to update a bounty with invalid data.
Fix a small typo in one of the bounty#edit integration tests.
Fix a logic error in one of the bounty#edit integration tests.
If a user tries to edit a bounty for which they don't have permission, they will be sent back to the previous page they were on.