Update Check and ParsedDocument

addAssertionRepCharsetNoVisibleCharset();
addAssertionRepCharsetNoEffectiveCharset();
addAssertionRepCharsetBomInContent();
addAssertionRepCharsetUtf16Meta();
Fix I18nTestRunnerTest

Expected reports should have an 'ERROR' level by default (was 'INFO').
Update Check and ParsedDocument

addAssertionRepCharsetBogusUtf16();
addAssertionRepCharsetUtf16lebe();
addAssertionRepCharset1024Limit();
addAssertionRepCharsetCharsetAttr();