Initial schema and model change, migration
basic form changes
Merge branch 'refs/heads/master' into specialization_tab

Conflicts:
	db/schema.rb
Merge branch 'refs/heads/master' into specialization_tab
Merge branch 'refs/heads/master' into specialization_tab
Merge branch 'refs/heads/master' into specialization_tab
Merge remote-tracking branch 'origin/master' into specialization_tab
Incorrect class_name for belongs_to
Temp fix to existing code while we re-plumb things
Specialization pages open to content_item tabs when set
Merge pull request #81 from warneboldt/specialization_tab

Divisions can set specific specializations to open to content categories, not just specialists or clinics