Slightly stuck

Having difficulty with spec'ing sortable tables
Condense nav helper functions into nav_helper
As a result incur spec'ing bug with partial sidemenu view
Start in on imprintable_invariants
Merge branch 'develop' of https://github.com/AnnArborTees/softwear-crm into develop-david

Conflicts:
	app/views/shared/_sidebar_menu.html.erb
	config/routes.rb
	db/schema.rb
	spec/features/sizes_spec.rb
Fix jquery.simulate.drag-sortable.js

Still can't figure out the spec..