fix login redirect system
refactor URL helpers

No longer requires `linguistics`, since ActiveSupport already supported pluralization.
refactor URL helpers

No longer requires `linguistics`, since ActiveSupport already supported pluralization.
implement basic delegations model/controller
Merge branch 'delegations' into acl

Conflicts:
	lib/url-helpers.rb
test, refactor controller helpers
add more tests
move from json to yaml for configuration storage