message: async -> coroutine to make istanbul happy :(
diff: @@ -204,10 +204,10 @@ DebugApi.prototype.run = function() {
  }).listen(this.port);
  }
  -DebugApi.prototype.killPortal = async function(req, response) {
  +DebugApi.prototype.killPortal = Promise.coroutine(function*(req, response) {
  const result = {error: [], stages: []};
  - const body = await this._wrapJsonReq(req, response);
  + const body = yield this._wrapJsonReq(req, response);
  // Room room_id to lookup and delete the alias from.
  const roomId = body["room_id"];
  // IRC server domain
  @@ -237,7 +237,7 @@ Leave Notice: ${notice}
  Remove Alias: ${remove_alias}`);
  // Find room
  - let room = await this.ircBridge.getStore().getRoom(
  + let room = yield this.ircBridge.getStore().getRoom(
  roomId,
  domain,
  channel,
  @@ -267,7 +267,7 @@ Remove Alias: ${remove_alias}`);
  if (notice) {
  try {
  - await this.ircBridge.getAppServiceBridge().getIntent().sendEvent(roomId, "notice",
  + yield this.ircBridge.getAppServiceBridge().getIntent().sendEvent(roomId, "notice",
  {
  body: `This room has been unbridged from ${channel} (${server.getReadableName()})`
  });
  @@ -281,7 +281,7 @@ Remove Alias: ${remove_alias}`);
  const roomAlias = server.getAliasFromChannel(channel);
  console.log("Alias", roomAlias);
  try {
  - await this.ircBridge.getAppServiceBridge().getIntent().client.deleteAlias(roomAlias);
  + yield this.ircBridge.getAppServiceBridge().getIntent().client.deleteAlias(roomAlias);
  result.stages.push("Deleted alias for room.");
  } catch (e) {
  result.error.push("Failed to remove alias");
  @@ -291,7 +291,7 @@ Remove Alias: ${remove_alias}`);
  // Drop clients from room. We are being naughty and using the provisioners method for this.
  try {
  - await this.ircBridge.getProvisioner()._leaveIfUnprovisioned({
  + yield this.ircBridge.getProvisioner()._leaveIfUnprovisioned({
  log: log
  },
  roomId,
  @@ -307,7 +307,7 @@ Remove Alias: ${remove_alias}`);
  result.stages.push("Parted clients where applicable.");
  this._wrapJsonResponse(result, true, response);
  -}
  +});
  DebugApi.prototype._wrapJsonReq = function(req, response) {
  let body = "";
  