Merge branch 'release/0.5.0' into develop
Not sure how this stuff got in there.
Merge pull request #52 from fedora-infra/feature/fix-old-migration-scripts

Not sure how this stuff got in there.
Fix SQLAlchemy Unicode warning
Merge pull request #53 from fedora-infra/feature/fix-unicode-warning

Fix SQLAlchemy Unicode warning
Add alembic script to fix old git topics
Fix message contents and drop certs and sigs
Fix start=0 for d.m.Message.grep (datagrepper/#52)
Merge pull request #60 from fedora-infra/feature/fix-grep-start-zero

Fix start=0 for d.m.Message.grep
Add source_{name,version} to BaseMessage.__json__
Merge pull request #59 from fedora-infra/feature/fix-git-topics

Add alembic script to fix old git topics
Add UUID column
Emit datanommer.wat fedmsg if a database constraint is violated
whoops
Add uuid option to grep
Actually add uuid to database
s/uuid/msg_id/
Add a test for the datanommer consumer duplicate uuid stuff.
Merge branch 'feature/uuid' of github.com:fedora-infra/datanommer into feature/uuid
Loosen requirement on having a msg_id around.