1. Add doxygen markup for documentation.

1. Add doxygen markup for documentation.

2. In jsonNewObjectType(): explicitly initialize a JSON_BOOL to false, instead
of implicitly relying on the expectation that a NULL pointer is represented
by all-bits-zero.

3. In jsonObjectExtractIndex(): set the parent pointer to NULL in the
extracted jsonObject.

M    include/opensrf/osrf_json.h
M    src/libopensrf/osrf_json_object.c

git-svn-id: svn://svn.open-ils.org/OpenSRF/trunk@1794 9efc2488-bf62-4759-914b-345cdb29e865