Made the shortcuts work somewhat for fltk2.0, but not working completely
Fixes from Bill Allombert:
Typos in manpage
Doubles the & signs in menus to avoid underscores
The -fg switch works to set the text color everywhere
Ifdef'ed out some fltk2.0-only stuff.
fl_ prefix for filename functions in fltk1.
Turns off visible_focus() (really click-to-focus on buttons) in fltk1.
Rotated code works for fonts where fontstruct->per_char is NULL.
