message: Lowercase all usernames
  As synapse doesn't accept usernames with capitals in them now
  Fixes
diff: @@ -302,7 +302,7 @@ module.exports = React.createClass({
  } : {};
  return this._matrixClient.register(
  - this.state.formVals.username,
  + this.state.formVals.username.toLowerCase(),
  this.state.formVals.password,
  undefined, // session id: included in the auth dict already
  auth,
  