message: Use constants to define powerlevels
diff: @@ -17,6 +17,8 @@ import { MembershipQueue } from "../util/MembershipQueue";
  import { IrcMessage } from "../irc/ConnectionInstance";
  const NICK_USERID_CACHE_MAX = 512;
  +const PM_POWERLEVEL_MATRIXUSER = 10;
  +const PM_POWERLEVEL_IRCUSER = 100;
  type MatrixMembership = "join"|"invite"|"leave"|"ban";
  @@ -149,8 +151,8 @@ export class IrcHandler {
  */
  private async createPmRoom (toUserId: string, fromUserId: string, fromUserNick: string, server: IrcServer) {
  const users: {[userId: string]: number} = { };
  - users[toUserId] = 10;
  - users[fromUserId] = 100;
  + users[toUserId] = PM_POWERLEVEL_MATRIXUSER;
  + users[fromUserId] = PM_POWERLEVEL_IRCUSER;
  const response = await this.ircBridge.getAppServiceBridge().getIntent(
  fromUserId
  ).createRoom({
  