Add acknowledges file

Note those that rendered a great deal of assistance and prioneered
development that might not be otherwise recognised.

ACKNOWLEDGEMENTS

@@ -0,0 +1,13 @@
+Thanks to Aleksander Korzynski and Stanisław Pitucha for taking the
+original design spec and some basic manual steps and experiementing
+with initial implementations.
+
+To Davide Guerri, for picking up a rough python tool and turning it
+into something that was actually usable.
+
+Also to Jon Paul Sullivan and Monty Taylor to listening and providing
+a sounding board for different approaches.
+
+And finally to Coleman Corrigan among numerous others who acted as
+willing guinea pigs for the original manual approach. Hope this
+eventually helped save you time and some hair.

build_manpage.py

@@ -20,6 +20,7 @@
 import datetime
 import argparse
 from distutils.core import Command
+import os
 
 
 class BuildManpage(Command):
@@ -100,6 +101,11 @@ class BuildManpage(Command):
         ret.append(('.SH AUTHORS\n.B %s\nwas written by %s.\n'
                     % (self._markup(app_name), self._markup(author))))
 
+        if os.path.exists('ACKNOWLEDGEMENTS'):
+            acknowledgements = open('ACKNOWLEDGEMENTS', 'r').read()
+            if acknowledgements != "":
+                ret.append(('.SH ACKNOWLEDGEMENTS\n%s\n' % acknowledgements))
+
         return ''.join(ret)
 
     def run(self):