Fix Parallel::ForkManager to match the correct naming (so it can be installed from cpan or otherwise)
Invoke showusage() when passing --help
Merge pull request #35 from whatbox/fix-help

Invoke showusage() when passing --help
Merge pull request #31 from whatbox/fix-forkmanager-caps

Fix Parallel::ForkManager to match the correct naming
Merge pull request #1 from robinbowes/master

rebase