CLOUD-242 remove unnecessary clusterListController

Conflicts:
	app/static/js/controllers.js
	app/static/js/controllers/clusterController.js
CLOUD-242 save last order predicate to refresh can order by the same field

Conflicts:
	app/static/js/controllers/clusterController.js
CLOUD-242 fix cluster icon remove and error message not found problems

Conflicts:
	app/static/js/controllers/clusterController.js
Merge pull request #70 from sequenceiq/master-commits

apply cluster list panel fixing commits from master