methods for traversing the data have been collasped into 1. Functionality has
been added for saving textures, but as this is not working perfectly yet it
has been disabled in this checkin. Second, the ray caster was obsoleted. It
has not been in use for the past week, but now all the methods have legacy
warnings and do nothing. Third, the view rays have been obsoleted - legacy
warnings on all the methods. Other changes: otherPrint.tcl - removed the
puts statement indicating what was being tested.