CLOUDSTACK-702: Added tests for alias ip verifications on VR 1. Moved vm deployment code to setup and vm deletion code teadDown methods 2. Added two tests which would verify alias removal after last vm expunge in CIDR and alias status after VR reboot

CLOUDSTACK-702: Test for verifying ip alias after VR stop start
     1.Deploy vm in new cidr which will create ip alias on existing VR
	Stop,start VR and verify ip alias

Conflicts:

	test/integration/component/maint/test_multiple_ip_ranges.py

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK-4691: Deleted host maintenance tests from this file