Fixed a small issue with empty lists and regenerated sig tests.
Merge remote-tracking branch 'colinbull/master'
Merge remote-tracking branch 'colinbull/master'
Unfold optional args to overloads to make HtmlOperations more C# friendly + Add descendantsWithPath, hasId, hasClass
Merge pull request #725 from ovatsus/master

Unfold optional args to overloads to make HtmlOperations more C# friendly + Add descendantsWithPath, hasId, hasClass
Update RELEASE_NOTES.md
Improve error message
Merge pull request #728 from weismat/master

Improve error message for schema Issue 727