Changed to simple version string

Hi again,

This is a small change to the way VERSION is done for your module. Currently it is:

    use version; our $VERSION = version->declare('v0.4');

The problem with this is that the version of the module is being reported as 'v0.4' instead of '0.4'. This means that any systems / code out there which expect version numbers to be just numbers, will fail. For example:

> http://changes.cpanhq.org/dist/HTML-FormHandlerX-Field-URI-HTTP/v0.4

Here are two blog posts about perl versions, one of them by me :-)

 * http://www.dagolden.com/index.php/369/version-numbers-should-be-boring/
 * http://neilb.org/2013/07/16/version-numbers.html

Obviously your call, but thought you might want to know that this style of version number can cause problems.

Cheers,
Neil