Added initial ISBN functionality.
Increased max ISBN length to allow for dashes and such.
Add zero-space breakpoint for hearder
Auto-shrink header for small screens
Added interactive ISBN querying.
Trim author fields that start with by.
Render request for inactive listings
Fixed bug where multiple identical ISBNs broke things.
Fixed bug where listings weren't saved properly after the author was trimmed.
Merge branch 'master' of git.gmu.edu:srct/bookshare

Merging branches.
Removed extraneous label 'edition' from info display.
Added ISBN-13 validation, some documentation, and cleaned up the order of validation steps.
Trim whitespace from input fields.
Added bid app.
Installed bids app.
added
Added bid display on listing page.
Fixed bid content spacing
Added BidForm
Sort bids by newest first.