Support running autodie+tests locally without versions

This makes it possible to e.g. run autodie's test suite using only
prove (i.e. without dzil), which is quite useful for development.
Releases should still be done with dzil.

Signed-off-by: Niels Thykier <nth@netcompany.com>
t/version.t: Fix typo of Fatal::Version

Signed-off-by: Niels Thykier <niels@thykier.net>
Merge pull request #55 from nthykier/versionless-locally

Support running autodie+tests locally without versions