CLOUDSTACK-5432: potential bugs in case of stop mgt server while
template is downloading, template_store_ref has leftover not in ready
state, when create vm from that template, the code doesn't check either
zone id, nor template_store_ref state.

Conflicts:
	engine/orchestration/src/org/apache/cloudstack/engine/orchestration/VolumeOrchestrator.java
checkstyle: trailing spaces