Set JSON_SORT_KEYS and JSONIFY_PRETTYPRINT_REGULAR to False by default

[kparaju]

During our testing we have found out that setting JSON_SORT_KEYS and JSONIFY_PRETTYPRINT_REGULAR to False (in older version of flasks this is True by default) in flask increases performance quite a bit. especially if your payload is huge.

This is because formatting will create lots of whitespace characters that gets sent through the wire and it takes computational resource. JSON_SORT_KEYS=False will also cause us not to unnecessarily sort keys of the dictionary.

I can work on this in the next ~week or so.

[ukclivecox]

Great. That sounds very useful additions to the python wrapper.