message: fix refresh token to use formParams
diff: @@ -576,9 +576,9 @@ export class Oauth2Auth extends AlfrescoApiClient {
  'Authorization': auth
  };
  - queryParams = {
  - refresh_token: this.authentications.oauth2.refreshToken,
  - grant_type: 'refresh_token'
  + formParams = {
  + grant_type: 'refresh_token',
  + refresh_token: this.authentications.oauth2.refreshToken
  };
  let contentTypes = ['application/x-www-form-urlencoded'];
  