Update some test filenames w/ new convention.

--HG--
rename : relaxng/tests/html/attributes/data/001.html => relaxng/tests/html/attributes/data/001-isvalid.html
rename : relaxng/tests/html/attributes/data/001.notvalid.html => relaxng/tests/html/attributes/data/001-novalid.html
rename : relaxng/tests/html/attributes/data/002.notvalid.xhtml => relaxng/tests/html/attributes/data/002-novalid.xhtml
rename : relaxng/tests/html/attributes/data/003.notvalid.html => relaxng/tests/html/attributes/data/003-novalid.html
rename : relaxng/tests/html/attributes/data/004.html => relaxng/tests/html/attributes/data/004-isvalid.html
rename : relaxng/tests/html/attributes/lang/001.html => relaxng/tests/html/attributes/lang/001-isvalid.html
rename : relaxng/tests/html/attributes/lang/001.notvalid.html => relaxng/tests/html/attributes/lang/001-novalid.html
rename : relaxng/tests/html/attributes/lang/002.notvalid.html => relaxng/tests/html/attributes/lang/002-novalid.html
rename : relaxng/tests/html/attributes/lang/003.html => relaxng/tests/html/attributes/lang/003-isvalid.html
rename : relaxng/tests/html/attributes/lang/004.notvalid.html => relaxng/tests/html/attributes/lang/004-novalid.html
rename : relaxng/tests/html/attributes/lang/005.notvalid.html => relaxng/tests/html/attributes/lang/005-novalid.html
rename : relaxng/tests/html/attributes/role/001.notvalid.html => relaxng/tests/html/attributes/role/001-novalid.html
rename : relaxng/tests/html/elements/table/001-notvalid.html => relaxng/tests/html/elements/table/001-novalid.html
rename : relaxng/tests/html/elements/table/002-notvalid.html => relaxng/tests/html/elements/table/002-novalid.html
rename : relaxng/tests/html/elements/table/003-notvalid.html => relaxng/tests/html/elements/table/003-novalid.html