* Add config for setting up a jaeger opentracing reporter

* Remove redundant comment

* Add a monolithic server that combines all the components into one

* Review comments

* Expose the matrix APIs directly

* Add database functions to interact with aliases

* Save room alias

* Check if alias already exists

* Implement local alias lookup

* Implement alias removal

* Move alias API

* Handle case with no alias set for a room

* Apply requested changes

* Use HTTP API for roomserver input.

* Use synchronous HTTP API for writing events to the roomserver

* Remove unused config for kafka topic

* Tweak comments

* Move all the dendrite config in to a single place

* Add tests for config parsing

* replace syncserver config with common config

* Replace client API config with common config

* Replace federation API config with common config

* Replace media api config with common config

* Replace room server config with common config

* Remove unused readKey function

* Fix the integration tests

* Comment on hardcoding roomserver to HTTP

* Add a method for getting RoomServerURL

This moves the hardcoding of HTTPs into one place.

This distinguishes them from tools like 'kafka-producer'
which are not required to run a dendrite server.

The prefix also groups together the dendrite binaries nicely
on `ls` as well as making it nicer to tab-complete.

* Add option to stop processing input after a given number of messages

* Start implementing a query API for go using net/rpc

* Use a conventional JSON POST API rather than go net/rpc

net/rpc doesn't automatically handle reconnecting and we have better
logging and metrics infrastructure for monitoring HTTP apis.

* Implement the query API and add it to the integration tests

* Increase the timeout, travis seems to be a bit slow

* Clarify that state events are the things that are not returned if they are not requested

* Add utility function for converting arrays of numeric event IDs to pq Int64Arrays

* Warn people against requesting empty state keys by accident

* Track which events have been sent and the last event sent for each room

* Write output events

* comment that an event could be sent twice

* A kafkaesque room event consumer for the roomserver.

Implement the main input loop for the roomserver.

It will receive events from a kafkaesque event source and track
where it is in the stream.

It currently does nothing with the events it consumes.