Update copyright notice

Cleaned up the whole Include/Merge/Open mess (removed the ugly
yyin/yyname tables in the parser, made the Merge routine reentrant
+ uniformized all the INFO/STATUS messages).

This should fix a nasty side effect from this morning's
commit (wrong yynames when doing multiple merges in the same
file).

Small gl2ps cleanups

open eps/pdf files in binary mode

Add support for compressed PDF output

Open pdf files in binary mode

Fix feedback buffer size for tex output

New native PDF support

One more warning

Fixed a couple more warnings + added AppleMenuBar option

Added PNG support

Fix whitespace in copyright headers

Upgrade to latest gl2ps version

Indented all source files using utils/gmshindent

Updated copyright

New occlusion culling code contributed by the guys from CERN. Disabled
by default.

after CreateOutputFile, preventing consecutive "Print" in the parser
to change format correctly

"save as" stuff. This will only work with fltk > 1.1.0rc4 (Michael
Sweet added 2 functions to the fltk file chooser specially for us!)

Interface polish (buttons should not be resized when the size of the window is changed);
gl2ps update (not finished);

Clean up stringb expressions