Code-cleaned ReadTMWdefinitionFile which was an awful mess. Did
this along the way when implementing TCC 8-bit support.
Unicode<->TMW conversion of whole document now applies to footnotes
and endnotes.
Now (per spec) use 00A0 space rather than 0020 (= ASCII 32) for EWTS _ .
Implemented [] nesting rule for F9. It already worked for F10,
fortuitously.
Optimize out most calls to MakeRange*Script (recently introduced to
work around Word Unicode font-change bug); this improves performance
and also decreases the number of useless font-change events on the
Undo list.
"combination" -> "deprecated" in Unicode definition reader.
4aa9128173