mussel,test: cache instance param.
mussel,test: enable to register multi node.
mussel,test: rename t.lb.node.single.sh -> t.lb.http.node.single.sh.
mussel,test: add t.lb.http.node.multi.sh.
mussel: add update task to load balancer.
mussel,test: add setup/teardown function.
mussel: add instance_protocol to request param.
mussel,test: add load balancer unit test with ssl certificate.
mussel,test: add destroy_load_balancer to tearDown().
Merge pull request #189 from axsh/feature-mussel-lb-smoketests

Feature mussel lb smoketests