Added reference from TL12
	new file:   references/mkiv/math/punctuation-001.pdf
Test for punctuation fails.

Moved this text in a new directory, because the mkiv/math is full of
other failing tests which need fixing before running

	renamed:    references/mkiv/math/punctuation-001.pdf -> references/mkiv/math-new/punctuation-001.pdf
	renamed:    src/mkiv/math/punctuation-001.tex -> src/mkiv/math-new/punctuation-001.tex