Edit attachment names inline in speed tagging.
Make attachment renaming JS only.
Functional tests for inline attachment renaming.
Add truncate option to link_to_attachment helper.
Style improvements for inline attachment editing.
Use new button name in test.
Split inline attachments out into partials.

Add explicit success message.
Make forms more idiomatic Rails.
Merge pull request #1338 from alphagov/rename_attachments_inline

Allow inline editing of attachments in the speed-tagging interface.

https://www.pivotaltracker.com/story/show/67119874