add rule and test
remove property
fix crawler name
remove some checks
add rule and test
added rules and tests
fix version
update from the master branch
update from the master branch
update from the master branch
Merge pull request #278 from mimmi20/issue-270

Fixes #270
Merge pull request #277 from mimmi20/issue-269

Fixes #269
Merge pull request #273 from mimmi20/issue-263

Fixes #263
update from the master branch