remove charge_on_stripe()
remove stripe
remove unused function
first attempt at fixing Balanced JS error messages
make the country field actually optional
refactor
refactor 2
fix saving bank account failure to DB
don't archive participant when closing account

but set claimed_time to NULL
make sure that balance and tips have been dealt with
reset session_token and session_expires when closing account
Here's a failing test for #1499
remove pytz, use aspen.utils.utc* instead
add a couple of helper methods to aspen.Response
fix how we patch `datetime.utcnow()` in tests
use `aspen.utils.to_rfc822` instead of the obsolete `rfc822.formatdate`
only send a session cookie when it's actually needed
temporarily copy to_rfc822() from aspen.utils

to be removed by #2384
raise a Warning if monkey-patched methods already exist
fix tests