Fix GLUT include in fracviewer.cxx.
Add explicit dependencies on .o files for each demo program; this allows
FLTK to be compiled with older (broken) make programs that don't support
multi-step dependencies.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1928 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
OpenGL implementations can queue dozens of frames...
Also fix controls in "flying" mode - the Y axis was reversed.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1907 ea41ed52-d2ee-0310-a9c1-e6b18d33e121