Fix the jsonFormatString function.

Fix the jsonFormatString function.

Specifically: it was misbehaving when a string literal contained
a comma, square bracket, or curly brace.  Now it pays attention to
whether those characters are in within quotes or not, and treats
them accordingly.

It also applies more consistent indentation by consuming
extraneous white space that would otherwise lead to ragged margins.

M    src/libopensrf/osrf_json_tools.c

git-svn-id: svn://svn.open-ils.org/OpenSRF/trunk@1946 9efc2488-bf62-4759-914b-345cdb29e865