Changing ./script/rubber to guarantee it can be ran as script after git cloning

Without this I'm having to overwrite the whole function just so I don't get a "permission denied" when running the script after changing from the capistrano copy :scm to the git :scm. Wr0ngway, could you also please upload the latest version of the gem on the main repositories? I was trying to update without point to git and last time the last version was 2.0.4, not 2.0.6. Thanks a lot! Best,