typo
Use polymorphic_path in the redirects, which prepares for
applying attachments to file groups.
Rename existing attachment tests to make it clear that they refer to
collection attachments.
Adapt collection attachment tests for file group attachments.
New steps are _not_ written yet, nor is code to implement functionality. It's
just the tests themselves.
Add some steps for file group attachment tests
Refactor and reorganize file group show page so that it will
be able to accomodate attachments.
All of the file group attachment tests are passing. Need
to check the whole suite.
Fix the attachment form a little bit.
Minor refactoring on attachments.
Bit more attachment refactoring.