Slim the number of files we ship in the gem package
Slim the number of files we ship in the gem package

There's no need to ship the readme or rakefile in this repo since there's no specs to actually run in CI.

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef/knife-push,chef/knife-push