Pretty up parser test output:

Pretty up parser test output:
* include old failing tests in --record output, at the end of the changed items
* suppress failure notices during run if --record and --quiet are both specified, so they're not duped
* show relative paths for the test input files
* moved FiveUpgrade::relativize() to wfRelativePath() for wider use; using DIRECTORY_SEPARATOR instead of '/' but might explode on windows, haven't tried it ;) won't handle different drives/UNC servers right, probably