Adjustments can now be open/closed/finalized
- Add a state machine to adjustments with states open, closed, finalized
- Once an adjustment is finalized, it cannot be changed, but an
  adjustment can toggle between open/closed as needed
- Update Admin UI to allow users to toggle an adjustment's state
Show the correct item total on order details page

[Fixes #2376]
fix #2347 fluid images for product

Fixes #2374
Bump to Rails 3.2.10
[dash] Sync 'spree' as platform type to Jirafe