Allow URIs to be used instead of hostnames.

This means we can run:

        multi-ping http://example.com/
        multi-ping https://steve.com:123/fdsf/test
  Document URI-argument to multi-ping.
Adding a forever loop with a sleep, and reducing duplicate code
Merge pull request #9 from jdlawrie/master

Adding a forever loop with a sleep, and reducing duplicate code
  perltidy
  Allow --loop|--forever to repeat pings.
  Allow --sleep to specify the delay.

  Used with --loop/--forever
  Silly laptop doesn't like the ANY-type.
Added 'cronic' from Joey Hess.
Handle IPC::Run module not being installed.
  Perltidy
  Document chronic
  Renamed this script.

  How did nobody notice for the past few months?!
merge upstream/master