Begin to add new AddAFSignal and RemoveAFSignals to AtomSpacePublisher
Multi-threaded background atomspace publisher
Add server commands to enable and disable AtomSpacePublisher signals while module is loaded
Replace Boost Property Trees with json_spirit to improve performance and preserve non-string types
In-progress updates to signal handling
Temporarily disable 'count' in JSON parser
Fix decimal formatting bug in json_spirit v4.06 library