Use global bundle config for binstubs path

[gylaz]

You can create a config file ~/.bundle/config and put this in it:

---                                                                             
  BUNDLE_BIN: ./.bundle/bin

The path can be whatever we standardize on, like ./bin/stubs, but I thought ./.bundle/bin was pretty self explanatory.

Anyway, setting the global bundler config like that will always install the bundle binaries into ./.bundle/bin by just running bundle or bundle install. You don't need to provide --binstubs flag.

[jferris]

Cool - I didn't know bundler looks for ~/.bundle. Would love to see a pull request.

[gylaz]

Closing this since we already standardized on binstubbing into ./bin.