testing the 'is included' behavior for tags array
Revert "testing the 'is included' behavior for tags array"

This reverts commit ff0719ef89e2e0063295c784c2180fc7ed79a6c7.
usando campo tiulo_ordenacao no lugar de tilulo, e usando match com regex
usando intersect behavior para tags dentro de or_matcher
ignoring rvm file
generalizing or matcher, receiving nested matchers