ncurses 5.9 - patch 20130615

+ minor changes to some configure macros to make them more reusable.
+ fixes for tabs program (prompted by report by Nick Andrik):
  + corrected logic in command-line parsing of -a and -c predefined
    tab-lists options.
  + allow "-0" and "-8" options to be combined with others, e.g.,"-0d".
  + make warning messages more consistent with the other utilities by
    not printing the full pathname of the program.
  + add -V option for consistency with other utilities.
+ fix off-by-one in columns for tabs program when processing an option
  such as "-5" (patch by Nick Andrik).