removed #ifdef Darwin  as no longer seems to recognize these.....
was messing up antialiasing....
forced clearing of both eyes in paint_frame()
fixed antialiaising (Darwin definition was lost).
and Now clear both eyes in paint frame for all ocularities.
removed lrand48 and drand48 from do_cyl.c  Now uses myrnd macros,
sorted preprocessor definitions
removed confirm_yes. Stim duration now just acknowledge.
Manual expo : lines now down serial line with “mt”
Merge branch 'OfficeCopy'
after merge with office copy