Merge pull request #1 from kmohr/master

Updates through 8.8
fixed typos.
Add permissions screen for admins.
Added a seeds file
Added the ability to attach a file to a ticket.
Added the ability to upload 3 files at a time.
assets are now strictly served through FilesController.
Provided an 'Add another file' link that uses Javascript so that users can upload more than one file.
updated spec for expand_path to pass javascript code.
merge changes.