Bug fix and feature release

Ublu 1.1.1

Bug fix and feature add revision.
Many bugs fixed and much code cleaned up.
Documentation improved.

Changes to commands:

• DO now has -undo to allow decremental looping
• IF now has -! to invert the sense of the logical test
• monitor
  • now takes an as400 instance instead of credentials
  • now takes worklib ~@{libname} for it working library on the server
• RETURN command (new) leaves a FUNC or defun
• tn5250 and session commands (new) allow a screen-scraping telnet 5250
• tuple now takes -istuplename to test for validity of tuple name

New examples:

• connect5250.ublu
• describe_object.ublu