Merge branch 'release/0.0.6' into develop
Remove spurious import.
Add the owner of the meeting to the chairs dict for fedmsg.  Fixes #4.
Protect against double-wrapping other plugins.

Fixes issue #2.
No reason for that to be a class method, I guess.
Merge pull request #6 from fedora-infra/feature/stop-double-wrap

Protect against double-wrapping other plugins.
Merge pull request #5 from fedora-infra/feature/owner-as-chair

Add the owner of the meeting to the chairs dict for fedmsg.
0.0.7
Merge branch 'release/0.0.7'