message: feat: Check for SENTRY_RELEASE during config phase
diff: @@ -69,6 +69,8 @@ function Raven() {
  this._globalProject = null;
  this._globalContext = {};
  this._globalOptions = {
  + // SENTRY_RELEASE can be injected by https://github.com/getsentry/sentry-webpack-plugin
  + release: _window.SENTRY_RELEASE && _window.SENTRY_RELEASE.id,
  logger: 'javascript',
  ignoreErrors: [],
  ignoreUrls: [],
  