ruby updates
call patches with the right nix
reorder gem phases
patch logic
remove depsPath
update patch comments
inherit the correct rake in buildRubyGem

this avoids accidentally depending on Ruby 1.9.3's rake for *every* gem
don't forget: patch gems in gems.nix too!
also recursively patch "self"
properly fix patching
fix self refs
ruby: expose RUBY_ENGINE, include teeny version in paths
fixup gem install flags
silence rm failures
importGems now reads attrsets instead of derivations
WIP
importGems doesn't crash if gemOverrides not given
Improve buildRubyGem
loadRubyEnv instantiates sources
Expose gems when using loadRubyEnv