adds requirement evolution and model
populates requirements table
merge
init
adds multiple attachment dropzones
makes progress compatible with help
grid layout
update attachment model and functions
refinements
workify uploading interface (sans archiving)
restore archiving and unarchiving functionality
styles dropzones
Merge branch 'attachments' of github.com:by-implication/Open-Reconstruction into attachments

Conflicts:
	public/javascripts/app/request/controller.js
	public/javascripts/app/request/view.js
cleanup
prevents dz-message from showing when something's been uploaded, adds upload-limit to 1, and adds a dz-message element to further separation of concerns
request creation with attachment list
merge
style refinements
Merge branch 'attachments' of github.com:by-implication/Open-Reconstruction into attachments
style refinements