added test for ReVIEW::HTMLUtils
added test for ReVIEW::HTMLUtils

kmuto/review,suzuki/review,krororo/review,takahashim/review,kdmsnr/review,kuad9/review_study,orangain/review,masawada/review,murashitas/review,krororo/review,kuad9/review_study,suzuki/review,orangain/review,kmuto/review,takahashim/review,murashitas/review,masawada/review,kmuto/review,krororo/review