Synnefo

astakos: Ensure computed result gets returned

Relying on cache.get is not always safe

astakos: Cache endpoints in POST /tokens

Since endpoints are rarely altered, we speed up POST /tokens by caching
them.

quotaholder: Reuse holding IDs in set_quota

For efficiency reasons, commit 20c6de3 deletes and recreates holdings
instead of updating them one by one. In order not to exhaust the IDs, we
reuse the deleted ones.

astakos: Refactor user creation

Provide auth.make_user() as the single way to create a new user. This
function is responsible to set all automatically generated fields, such as
username, uuid, and token. Clean up AstakosUser.save(), that used to
update these fields, and remove AstakosUser.__init__(). Remove trigger...

astakos: Lock user in im views

Make sure that views modifying users run in a transaction and lock users
before updating.