trivial: remove underscores in CConnectionManager
CConnectionManager: rename Hostnames -> Hosts

Super misleading....
Some const-correctness issues in CConnectionManager
Merge branch 'trivial/CConnectionManagerStyle' into protobuf_noprotobufs

Conflicts:
	Broker/src/CConnectionManager.cpp
	Broker/src/CConnectionManager.hpp
	Broker/src/CListener.cpp
	Broker/src/IPeerNode.cpp