message: fix(core): ErrorHandler should not rethrow an error by default
  Closes
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diff: @@ -41,12 +41,7 @@ export class ErrorHandler {
  */
  _console: Console = console;
  - /**
  - * @internal
  - */
  - rethrowError: boolean;
  -
  - constructor(rethrowError: boolean = true) { this.rethrowError = rethrowError; }
  + constructor(private rethrowError: boolean = false) {}
  handleError(error: any): void {
  this._console.error(`EXCEPTION: ${this._extractMessage(error)}`);
  @@ -71,8 +66,6 @@ export class ErrorHandler {
  }
  }
  - // We rethrow exceptions, so operations like 'bootstrap' will result in an error
  - // when an error happens. If we do not rethrow, bootstrap will always succeed.
  if (this.rethrowError) throw error;
  }
  