Created basic business updatable feature

I added a feature very similar to the business creatable feature for
updating. No tests pass yet, as they have not yet been implemented.

As well, at this point it would probably be advisable to refactor the
cucumber tests. That should be done on the master branch after this
branch has been merged.
Added edit and update to businesses

I added edit and update methods to the business controller as well as
all associated specs, views, etc.

Everything is a basic rails scaffold standard.
Merge branch 'User-should-be-able-to-update-businesses'