PV 1.0.1

Version 1.0.1 of PV has been released. This is a code cleanup release, prompted by the discovery that PV has been included in the Fedora Project - version 0.9.9 is available now in FC7 and as an "extra" package in FC6.

It can be interesting to go back to old code and see how the style has changed over time. With a fresh perspective, a few oddities were more obvious, so the occasional untidy section was rewritten and a few more comment blocks were added. The organisation of the functions was changed a bit so that the "command-line program" part is now distinct from the "PV functionality" part, which means if I decide in future to create a library to add progress indicators to other command-line programs it will be significantly easier. Not that it's likely, but it seemed to make things neater.