added xf parameter to run both LF and SF tests
added xf parameter to run both LF and SF tests

NOTE: The specs common to both Language Forge
and Scripture Forge are only run once.

ermshiperete/web-languageforge,ermshiperete/web-languageforge,ermshiperete/web-languageforge,ermshiperete/web-languageforge,ermshiperete/web-languageforge,ermshiperete/web-languageforge,ermshiperete/web-languageforge,ermshiperete/web-languageforge