message: Use DialogButtons in TextInputDialog
  Use DialogButtons to eliminate duplicate button code.
diff: @@ -58,6 +58,7 @@ export default React.createClass({
  render: function() {
  const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
  + const DialogButtons = sdk.getComponent('views.elements.DialogButtons');
  return (
  <BaseDialog className="mx_TextInputDialog" onFinished={this.props.onFinished}
  onEnterPressed={this.onOk}
  @@ -71,14 +72,9 @@ export default React.createClass({
  <input id="textinput" ref="textinput" className="mx_TextInputDialog_input" defaultValue={this.props.value} autoFocus={this.props.focus} size="64" />
  </div>
  </div>
  - <div className="mx_Dialog_buttons">
  - <button onClick={this.onCancel}>
  - { _t("Cancel") }
  - </button>
  - <button className="mx_Dialog_primary" onClick={this.onOk}>
  - { this.props.button }
  - </button>
  - </div>
  + <DialogButtons primaryButton={this.props.button}
  + onPrimaryButtonClick={this.onOk}
  + onCancel={this.onCancel} />
  </BaseDialog>
  );
  },
  