Tweaked the contacts template to only render "Owner:" once for objects with multiple owners
Merge remote-tracking branch 'origin/develop' into feature/object_owners_template

Conflicts:
	src/ggrc/assets/mustache/base_objects/contacts.mustache
Merge pull request #799 from reciprocity/feature/object_owners_template

Tweaked the contacts template to only render "Owner:" once for objects with multiple owners