CLOUDSTACK-5113: Fix get_template method to return 'BUILTIN' template in ready state with
matching given ostype
CLOUDSTACK-5852: router search in DomainDouterDao using AllFieldsSearch filters few routers due to router_network_ref join. Created a seperate search to list running routers with filters.

Conflicts:
	engine/schema/src/com/cloud/vm/dao/DomainRouterDao.java