CLOUDSTACK-3107: fix attach upload volume
Separate agentmanager from server code.  Moved out ssvm.  Remove methods that shouldn't be used
Unused code removal
Removed AgentMonitor and moved it inside AgentManager
Fixed the applicationcontext.xml because I removed a class.  oh kelven oh kelven, when can we get back our java based config for core components...this is so bad for refactoring