* Drop support for Rubinius * Update the homepage link
Running a command with a modified environment creates a race condition where the ENV can get clobbered. Process.spawn and POSIX::Spawn.spawn get around this by allowing an env hash to be passed in, but they are not available on 1.8. So, if they're available, use them, and if they're not, fall back to the backticks.
…ss to aid testing.