Graph (branch: tcc_current):
- Rewritten in C so now it can be compiled with tcc.
- Added functions: pow (^) and mod (%), arcctg, sgn, sec, cosec, log2, log3, log10.
- Added aliases for functions: tan, cot, arctan, arccot, lg, lb, ln.
- Fixed bugs with box_lib's edit_box.
- Removed deprecated/potentially unused code.
- Now an "Edit" button launches Cedit, not Tinypad.
- Now there is a better graph rendering: fixed bugs with text drawing.
- Added to autobuild list and in iso.
git-svn-id: svn://kolibrios.org@9762 a494cfbc-eb01-0410-851d-a64ba20cac60
