Create events table & handle setting claimed_time.
Track username changes, add /%username/events/ view.
Switch travis to postgres 9.3.
Try addressing comments from PR.
Merge branch 'master' into events

Conflicts:
	gittip/models/__init__.py
	gittip/models/participant.py
Fix up branch.py file; #2006

Not sure why this API changed. Something we did on master in the mean
time?
Fix bug in events page for #2006

The need for this import entered with #1369.
Merge pull request #2006 from gittip/events

Eating elephant, first step (events, db schema)
Bump version to 12.0.3
Bump version to 12.0.3-dev
Append branch.sql to schema.sql; #2006

This time we also had a branch.py. I've noted where that was run.
Add a field for MassPay fee cap; #1675
Make the db field name more concise; #1675
Switch to using numeric for money

Now's not the time to innovate.
Merge pull request #2093 from gittip/masspay-fee-cap

add a field for MassPay fee cap
Append branch.sql to schema.sql