Add json2.js to repository under json folder, update build script and app.yaml.template files.
This is pretty useful set of functions for JSON manipulation in Javascript, we will mostly use stringify function. This code is on Public Domain license and comes from http://www.json.org/js.html.
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed
# Please sort this file in alphabetical order by last (given) name.
# Please only include one name per line. If an (optional) email address is
# included, it must be RFC 2821 compliant (properly quoted, escaped, etc.).
# Lines beginning with # can be stripped from the file, as can blank lines.
"Madhusudan.C.S" <madhusudancs@gmail.com>
"Haoyu Bai" <baihaoyu@gmail.com>
"Augie Fackler" <durin42@gmail.com>
"Mario Ferraro" <fadinlight@gmail.com>
"Todd Larsen" <tlarsen@google.com>
"Chen Lunpeng" <forever.clp@gmail.com>
"Sverre Rabbelier" <sverre@rabbelier.nl>
"Lennard de Rijk" <ljvderijk@gmail.com>
"Pawel Solyga" <pawel.solyga@gmail.com>