Notes on various text api projects
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Enhancements that possibly require alternatives to standard Document classes:
- Chat rendering
-- Could possibly simply be sped up with <CODE>ElementSpec[]</CODE> insertion
-- May just need alternate view? formatting is derived from structure?
- SM: enhanced doc construction

Enhancements that may just need alternative View classes:
- Syntax highlighting for wiki-style text and raw html editor components
-- Should at least color-code shorthand elements and html tags
-- Could interpret bold, italic, and headline tags
-- Blue: start-of-line tags, correct link/embed tags, correct &amp; sequences
-- Grey: terminated html tags
-- Red: Incorrect/unterminated link/embed tags, html tags, or escapes
- Paren highlighting in formula editor
- WYSIWYG editor
-- need attribute support in SharedDocument
- Spell checking?
-- See "Jazzy" on sourceforge/freshmeat
-- Word lists at *http://wordlist.sourceforge.net/*

API notes:
- AbstractDocument.createLeafElement(...) only called at EOL
- GlyphView.createFragment(...) is called on line/word-wrap
- GlyphPainter imp that wraps existing imp, intercepts calls, changes Graphics context color, and 
-- Element responsible for tracking runs
-- RunSet cached, recomputed only if text changes