Send existing room tags down sync on join

Add apache vhost config to Readme

guest users should not be part of mau total

When a user joined a room any existing tags were not sent down the sync
stream. Ordinarily this isn't a problem because the user needs to be in
the room to have set tags in it, however synapse will sometimes add tags
for a user to a room, e.g. for server notices, which need to come down
sync.

Limit the number of PDUs/EDUs per fedreation transaction

Only start postgres instance for postgres tests on Travis CI

Remove conn_id from repl prometheus metrics

User iter* during sync state calculations

bump dep on pyopenssl to 16.x

Synapse 0.33.3.1 (2018-09-06)
=============================

SECURITY FIXES
--------------

- Fix an issue where event signatures were not always correctly validated ([\#3796](https://github.com/matrix-org/synapse/issues/3796))
- Fix an issue where server_acls could be circumvented for incoming events ([\#3796](https://github.com/matrix-org/synapse/issues/3796))

Internal Changes
----------------

- Unignore synctl in .dockerignore to fix docker builds ([\#3802](https://github.com/matrix-org/synapse/issues/3802))

Synapse 0.33.3.1 (2018-09-06)
=============================

SECURITY FIXES
--------------

- Fix an issue where event signatures were not always correctly validated ([\#3796](https://github.com/matrix-org/synapse/issues/3796))
- Fix an issue where server_acls could be circumvented for incoming events ([\#3796](https://github.com/matrix-org/synapse/issues/3796))

Internal Changes
----------------

- Unignore synctl in .dockerignore to fix docker builds ([\#3802](https://github.com/matrix-org/synapse/issues/3802))

remove synctl from .dockerignore

Implement 'event_format' filter param in /sync