Add the --query argument to fedmsg-tail
Add support for fedmsg-taill --query to return multiple items provided as a comma separated list
Small pep8 fix to make pep8.me happy
Fix the --query to enable filtering for multiple, different elements in the messages
Handle dates too.

fedmsg.encoding can handle encoding datetime objects and time structs.

This allows it to handle datetime.date objects too.
0.7.6
Combine the dict_query from fedmsg-config and fedmsg-tail into the same function.
Merge pull request #227 from fedora-infra/feature/fedmsg-tail-query-combined

Feature/fedmsg tail query combined
Merge pull request #226 from fedora-infra/feature/fedmsg-tail-query

Add the --query argument to fedmsg-tail