fixed gevent workers
grid refcator patch for ajax, thanks Niphlod
Support for HTTP Status Code: 429 - Too Many Requests

Currently raising HTTP 429 results in HTTP 500 being sent.  This patch resolves that issue.
Fixed problem with Rows.render
fixed setup scripts for apache to use processes, not threads, thanks Thomas
Merge pull request #238 from houdinihound/patch-1

Support for HTTP Status Code: 429 - Too Many Requests
Merge pull request #236 from niphlod/enhancement/anyserver_options

fixed gevent workers
Merge pull request #237 from alfonsodg/master

Added gitignore restrictions and changes for admin.py
Merge pull request #239 from abastardi/patch-1

Fixed problem with Rows.render
fixed regex status in http.py
Minor fixes for pep, styles and unused variables for utils and validators