Add admin api documentation, provider is not executed if relatedness was set to zero, fix dublicate specialities

	modified:   app/api/api.rb
	modified:   app/assets/javascripts/admin.js
	modified:   app/models/information_interface.rb
	modified:   app/models/information_providers/compound_info_provider.rb
Merge branch 'development' of github.com:pse4/orange-proton into development

Conflicts:
	app/models/information_providers/compound_info_provider.rb