* Implement membership endpoints

* Use FillBuilder when possible

* Fix typo in membership event content

* Fix state key invite membership events not being correctly set

* Set membership content to match the profile of the user in state_key

* Move event building and rename common function

* Doc getMembershipStateKey

* Check if user is local before lookin up their profile

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

* Review comments

* Expose the matrix APIs directly

This makes it possible to setup all the component APIs on a single http
listener which is necessary if we want to combine all the components
into a single monolith.

* Clean roomserver consumer

* Make account data sync incremental

* Use a different name for the sync AD table

* Improved error logging

* Created missing topic in tests

* Add client API topic to tests

* Add client API topic to common

* Move data batch retrieval

* Add database index for data retrieval

* Fix typo in table name

* Fix indentation

* Add local room join

* Update TODO

* 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

* Save function for account data

* Fix upsert + add empty routes and function

* Save account data

* Retrieval functions

* Implement retrieval in /sync

* Fix arrays not correctly initialised

* Merge account data retrieval functions

* Request DB only once per request

* Initialise array

* Fix comment

* Use gomatrixserverlib function to split user ID

* Propagate profile update via m.room.member events

* Send profile data on room join

* Send profile data on room creation

* Rename variable

* Move membership update to roomserver consumer

* Improve iteration

* Move event update from client API server to sync API server

* Change the way buildMembershipEvents is called

* Forbid update of someone else's profile

* Use gomatrixserverlib method

* Fix depth and previous events not being set

* Fix wrong removal in latest commit

* Update all events instead of only memberships

* Handle case where there is no state key

* Fix test

* Use HTTP API for roomserver input.

* Use synchronous HTTP API for writing events to the roomserver

* Remove unused config for kafka topic

* Tweak comments

* Saving memberships

* Removed unused index

* Removed useless log

* Fixed membership not being saved on the right conditions + added membership removal

* Updated outdated comment

* Use server lib method + check server name + use new roomserver API

* Better handling of events from the room server

* Fixed membership removal

* Corrected indentation

* Fix tests (hopefully)

* Replace broken kafka mirror

* Apply requested changes on database management

* Remove useless check and function

* Moved memberships update to the database package

* Use new common function

* Remove useless function

* Add a HTTP API for roomserver input

* Fix integration tests

* Profile retrieval

* Saving avatar (without propagating it)

* Saving display name (without propagating it)

* Getters for display name and avatar URL

* Doc'd

* Introduced new Kafka topic and producer

* Updated config with new kafka topic

* Switched to samara producer and now sending messages

* Doc'd

* Put kafka update after the database insert

* Doc'd profileUpdate structure

* Removed unused parameter

* Moved user updates producer to clientapi/producers

* Profile retrieval

* Saving avatar (without propagating it)

* Saving display name (without propagating it)

* Getters for display name and avatar URL

* Doc'd

* Remove unused import

* Applied requested changes

* Added auth on PUT /profile/{userID}/...

* Improved error handling/reporting

* Using utils log reporting

* Removed useless checks

* Use utility methods from gomatrixserverlib, rather than reimplementing them

* Return string rather than pointer to string

* Update gomatrixserverlib

* Set depth of events and whether they need to be federated.

Set the depth of each new event to one greater than the maximum depth
of it's direct ancestors.

Add a flag to each event passing through the roomserver that tells us
whether the event needs to be sent over federation.

We do this by passing the name of the server to send the event as.
We will need this capability if we want to support vhosting as it is
not possible to tell from the event alone which server to send it as.

(The reason for this is that sometimes a event needs to be sent on
behalf of a different remote matrix server)

* Update roomserver integration tests

* More comments

* Constants and comments

* Fix comments

* Document the int64 returned by LatestEventIDs

* Stub APIs needed to let riot join a room

* Fix 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.

* Start implementing the join room API

* Hacks to get join room working

* Make the TLS fingerprint configurable

* Fix the client API proxy to handle '#' correctly

* Return a 200 OK response

* Write the join event along with current state to the room server

* Comment on the error handling

* Fix typos

* Fix tab

* Add TODO for moving authEventIDs to gomatrixserverlib

* Comment on why we ignore the key ID argument for local keys

* Avoid 'preceeded'

* Neaten the control flow

* Neaten the control flow even more

* Return pointers

* Rename err to lastErr for the loop

- Renamed `clientapi/auth/types` to `clientapi/auth/authtypes` for the same
  horrible namespace clashing reasons as `storage`.
- Factored out `makeAPI` to `common`.
- Added in `makeAuthAPI`.

Previously, all database stuff was under the helpfully named
package 'storage'. However, this convention is used throughout all
of dendrite, which will clash the moment we want to add auth to all
the CS API endpoints. To prevent the package name clash, add
sub-directories which represent what is being stored so the final
usage ends up being:

```
func doThing(db *storage.SyncServerDatabase, authDB *accounts.Database)
{
    // ...
}
```

Including the ability to add new accounts with a user/password and
select accounts using a user/password. Uses bcrypt to hash passwords.

* Rename "make" to "makeAPI" and factor out some more common code into it

Naming a function the same as a go builtin function seems like a bad
idea. Also move the call to `NewJSONRequestHander` inside the function
rather than calling it everywhere.

* Fix typo