More Browser::Open

I pushed to CPAN a new release of Browser::Open.

I've added more commands to test (courtesy of code "borrowed" from SD, and the Launchy gem), and made the test suite more robust in case we don't find a suitable command.

<rant>
I'm amazed that something as simple as opening a URL is such a complicated task on most UNIX-based systems.

I have a single command to use on Mac OS X and on Windows based systems, but there seems to be no standard way of doing this simplest of things on UNIX systems.
</rant>