Committing massive pile of new-json code. This includes:

Committing massive pile of new-json code.  This includes:
the new-json object encoding protocol
a new C JSON parser which uses osrfHash and osrfList and is built into libopensrf (but has a standalone makefile)
altered osrfHashIterator API
some more work on the Python opensrf bindings
Lots of small updates to extract objson from header files and makefiles, etc.
support for new and legacy JSON encodings in the opensrf JSON gateway

git-svn-id: svn://svn.open-ils.org/OpenSRF/branches/new-json@889 9efc2488-bf62-4759-914b-345cdb29e865