closure notes displayed when re-open
Merge branch 'master' of github.com:StrataLabs/service_desk into closure_notes
added model link_type and its specs
replaced active with disabled, added disabled checkbox to link type edit
Merge branch 'master' into josh_features

Conflicts:
	db/schema.rb
Merge branch 'master' into josh_features
Merge branch 'master' into josh_features
Merge pull request #4 from StrataLabs/josh_features

Closure notes display when re-open