(lots of subsequent changes)
- ascii art drawing for \frac and \sqrt
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3780 a592a061-630c-0410-9148-cb99ea01b6c8
make *stream 'class' instead of 'struct' (not finished);
use LCOlor::mathline only for boxes.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3140 a592a061-630c-0410-9148-cb99ea01b6c8