Changes to Request Resources form:
  * Now appears in a modal rather than a popover -- allows us to reduce code duplication.
  * Nicer form validation and error handling in the modal.
  * Only one form exists now, instead of two in two places, so it can be called from any page.
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/atmosphere
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/atmosphere
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/atmosphere
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/atmosphere