Reorder items when changed.

- Items API returns changed items.
- Switched updates to PUTs to follow Rails convention.
- Using $filter to ensure that the order of the items is always kept up-to-date
Change in visuals.

- Added function to see if an item needs to be reminded to a user.
- Changed the SCSS
-- So that we don't have to use the !important override.
-- Added a red to signal to the user that they need to pay attention to this.  Definitely needs changing to something less glaring.
- Added the red-class to the template.
Removed ";".  Not idiomatic ruby.
Merge pull request #2 from Rememberability/feature/better_display_of_results

Feature/better display of results