HasVM methods implemented
Merge branch 'master' of https://github.com/UnaCloud/unacloudIaaS2.0.git

Conflicts:
	unacloudIaaS2.0/grails-app/domain/unacloud2/VirtualMachine.groovy
	unacloudIaaS2.0/grails-app/services/back/allocators/PhysicalMachineAllocatorService.groovy