Commit Briefs
keyboard: add compose sequences lc and rc for ceiling brackets (#126)
Change-Id: Ice1c8c9d15cc6febf32dc2b7c449d457acc319b6
keyboard: add more sequences, from existing ones or RFC 1345
R=rsc CC=plan9port.codebot https://codereview.appspot.com/43990046
Unicode superscript update
font/*/supsub.*: change superscript 1 into i; delete 2, 3 lib/keyboard: fix s1, s2, s3; add si lib/unicode: add 2071 src/cmd/devdraw: update from lib/keyboard