Make ApplicationInstance easier to construct for testing
ASGARD-1255 - Instance nav buttons should lead to instance/apps list of sub-lists, if Eureka exists in region
Remove unused imports
Code style fixes
Merge pull request #420 from joesondow/ASGARD-1255-instance-sub-lists-by-app

ASGARD-1255 - Instance sub-lists by app
Merge branch 'master' of https://github.com/Netflix/asgard into grails23