Log Message:
py-flask-restful: updated to 0.3.7

Version 0.3.7
Fix error handling in python3
Fix arguments with type=list
Return code for parse_args() is now configurable
Removed flask_restful.paging module.
Removed misleading help_on_404 functionality
JSON keys are no longer sorted by default in debug mode in python3
Various small fixes and updates to documentation