fix the subnet assert for remove tests
added verification, that repo was not synchronized
added verification, that repo finished synchroning
remove todo
Added the success notifs for subnet delete
Merge pull request #783 from AdamSaleh/cli-assert-repo-sync

Cli assert repo sync
Merge pull request #782 from kbidarkar/fix-subnet-assert3

fix the subnet assert for remove tests
Merge branch 'master' into make-remove-tests-faster

Conflicts:
	tests/foreman/ui/test_subnet.py