Matrix bridge doesn't need to have exclusive control over the namespa…

…ces in a self-service world

As part of the [sunset plan for Gitter]
(element-hq/roadmap#26), we need to make the
appservice not be exclusive over the namespaces defined in the appservice
registration file so people don't run into errors when they self-service and try to create things.

Part of https://github.com/matrix-org/matrix-hosted/issues/6979

modules/matrix-bridge/lib/matrix-bridge.js

@@ -29,21 +29,21 @@ const registrationConfig = AppServiceRegistration.fromObject({
  namespaces: {
  users: [
  {
- exclusive: true,
+ exclusive: false,
  // Reserve these MXID's (usernames)
  regex: `@.*-[0-9a-f]+:${serverName}`
  }
  ],
  aliases: [
  {
- exclusive: true,
+ exclusive: false,
  // Reserve these room aliases
  regex: `#.*:${serverName}`
  }
  ],
  rooms: [
  {
- exclusive: true,
+ exclusive: false,
  // This regex is used to define which rooms we listen to with the bridge.
  // This does not reserve the rooms like the other namespaces.
  regex: '.*'