#188 recreated problem
#188 fixed non static check
#190 XML validator
Issue #196 Updated to jcabi-parent 0.18.1
Merge pull request #212 from krzyk/190

#212: pull request #190 XML validator
Merge pull request #214 from carlosmiranda/196

#214: pull request Issue #196 Updated to jcabi-parent 0.18.1
Merge pull request #211 from krzyk/188

#211: pull request #188 fixed non static check