Log Message:

update to version 0.16.0

  Lots of demo programs for most runawk modules were created and 
  they are in examples/ subdirectory now.

  New MEGA module ;-) power_getopt.awk
  See the documentation and demo program examples/demo_power_getopt.
  It makes options handling REALLY easy.

  New modules:
      embed_str.awk
      has_suffix.awk
      has_prefix.awk
      readfile.awk
      modinfo.awk

  Minor fixes and improvements in dirname.awk and basename.awk.
  Now they are fully compatible with dirname(1) and basename(1)

  RUNAWK sets the following environment variables for the child awk
      subprocess:

      RUNAWK_MODC - A number of modules (-f filename) passed to AWK
      RUNAWK_MODV_<n> - Full path to the module #n,
          where n is in [0..RUNAWK_MODC) range.

  RUNAWK sets RUNAWK_ART_STDIN environment variable for the child awk
  subprocess to 1 if additional/artificial `-' was added to the list
  to awk's arguments.

  Makefile:
     bmake-ism were removed. Now Makefile is fully compatible with
     FreeBSD make.

     CLEANFILES target is used instead of hand-made rules

     Minor fix in 'test_all' target