Begin work on 0.1.0
Add a CHANGELOG
baseimage: Remove fd hack

Closes GH-48
buildpacks/ruby: Vendor heroku default ruby buildpack [GH-58]
buildpacks/ruby: Preparing to implement our custom ruby buildpack logic [GH-58]
buildpacks/ruby: Implement our custom languagepack as the default heroku buildpack [GH-58]
buildpacks/ruby: Remove things that we are sure that wont be needed for local development [GH-58]
buildpacks/ruby: `bundle install` that makes sense for dev environments [GH-58]
buildpacks/ruby: We are not going to use the bundler cache [GH-58]
buildpacks/ruby: Default config vars can be handled by the base class [GH-58]
buildpacks/ruby: Instrument using our namespace [GH-58]
buildpacks/ruby: Force cache object instantiation and brute force a custom metadata dir [GH-58]
buildpacks/ruby: Removing more dead code and customizing compilation [GH-58]
buildpacks/ruby: Write profile stuff to $HOME/.profile.d [GH-58]
buildpacks/ruby: Enough hacking to make it work [GH-58]
builder: Set a FORCED_BUILDPACKS env var when buildpacks are specified so that we can better handle bootstrapping processes
buildpacks/ruby: Make sure we can handle bootstrapping [GH-58]
buildpacks/ruby: Remove additional newline before outputing warnings and deprecations
buildpacks/ruby: Skip ruby installation if not needed

This is enough to close GH-58, further improvements will be devstep
related and have nothing to do with the heroku buildpack original
logic itself
buildpacks/ruby: Fix `bundle clean --force` after gems installation