message: cram the EncryptionPanel in CompleteSecurity instead of IncomingSasDialog
  so we get QR code support and support phases prior to STARTED
diff: @@ -138,9 +138,11 @@ export default class CompleteSecurity extends React.Component {
  let body;
  if (this.state.verificationRequest) {
  - const IncomingSasDialog = sdk.getComponent("views.dialogs.IncomingSasDialog");
  - body = <IncomingSasDialog verifier={this.state.verificationRequest.verifier}
  - onFinished={this.props.onFinished}
  + const EncryptionPanel = sdk.getComponent("views.right_panel.EncryptionPanel");
  + body = <EncryptionPanel
  + verificationRequest={this.state.verificationRequest}
  + onClose={this.props.onFinished}
  + member={MatrixClientPeg.get().getUser(this.state.verificationRequest.otherUserId)}
  />;
  } else if (phase === PHASE_INTRO) {
  icon = <span className="mx_CompleteSecurity_headerIcon mx_E2EIcon_warning"></span>;
  