Defaults ID to as_token if not specified. This will change
when IDs are fully supported.

Fix enabling & disabling push rules

Require AS users to be registered before use

Don't start server if ASes are invalidly configured

Delete unused code

Temporarily disable notification branch

Rename 'user_name' to 'user_id' in push

Erroring causes problems when people make illegal requests, because they
don't know what limit parameter they should pass.

This is definitely buggy. It leaks message counts for rooms people don't
have permission to see, via tokens. But apparently we already
consciously decided to allow that as a team, so this preserves that
behaviour.

Finish removing the .*Table objects from the storage layer.

bulk_get_push_rules should handle empty lists

Conflicts:
	synapse/storage/push_rule.py

Dont fire user_joined_room when guest hits /events

Don't include old left rooms in /sync

Firing the 'user_joined_room' signal everytime a guest hits /events
causes all presence for that room to be returned in the stream. This may
sound helpful, but causes clients to tightloop calling /events.

In general, guest users should get the initial presence from (room)
intial sync and so we don't require presence to sbsequently come down
the event stream.

Introduce a User object

I'm sick of passing around more and more things as tuple items around
the whole world, and needing to edit every call site every time there is
more information about a user. So pass them around together as an
object.

This object has incredibly poorly named fields because we have a
convention that `user` indicates a UserID object, and `user_id`
indicates a string. I tried to clean up the whole repo to fix this, but
gave up. So instead, I introduce a second convention. A user_object is a
User, and a user_id_object is a UserId. I may have cried a little bit.

This tracks data about the entity which made the request. This is
instead of passing around a tuple, which requires call-site
modifications every time a new piece of optional context is passed
around.

I tried to introduce a User object. I gave up.

Add FreeBSD install section & instructions

Add FreeBSD installation instructions for both Ports and Packages now that matrix-synapse has landed [1] in the tree.

[1] https://svnweb.freebsd.org/changeset/ports/405527

Turn on core dumps

Send unread notification counts

Only use cropped thumbnails when asked for a cropped thumbnail.

Even though ones cropped with scale might be technically valid.