Update Nokogiri
Update Nokogiri

CVE-2019-11068 is announced. https://nvd.nist.gov/vuln/detail/CVE-2019-11068
This vulnelability is in libxslt.
And nokogiri has a patch for this.
- https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md#1103--2019-04-22

hogelog/dmemo,hogelog/dmemo,hogelog/dmemo,hogelog/dmemo