safely convert ini parameters to bool, int, list and dict

[kgk]

This will convert ini paramerts to bool or int if they can be.
Allows for max_tasks_per_child to be set as well as others for celery workers

fixes : https://github.com/sontek/pyramid_celery/issues/103

[kgk]

The latest push adds json5 as safely converted value.. json5 is a human friendly json parser (accepts both ' and " ) and other things. I could also use a python AST parser if you prefer

[kgk]

I feel literal_eval is better solution.

1. Will only evaluate python literals .. no arbitrary code execution
2. No new dependencies.

[fmigneault]

I agree, ast.literal_eval is a better approach.

[kgk]

Just a ping to check if the patch is accepted

[fmigneault]

@kgk I also didn't get any answer from @sontek with #102. It seems we will never get an official release... If you want, I can add it to the list of combined improvements as a crim-ca/[email protected] version.

[kgk]

@fmigneault please add to your list