Preserve ENV vars CPATH and CPPPATH (composable buildpacks)
cat npm-debug.log on exit
Merge pull request #34 from ryanbrainard/cat-npm-debug-log

Cat npm-debug.log on exit
add CONTRIBUTING.md
remove extra newline
update 'no version specified' devcenter url
Merge pull request #30 from davidjrice/preserve-env-vars

Preserve ENV vars CPATH and CPPPATH (composable buildpacks)
improve documentation in README
add a readme section for hackers
DRY up the hacking docs
ignore .DS_Store
use npm 1.3.x by default
comments
cache node_modules
only cache if there is a node_modules dir
always pass a cache dir
test node_modules caching
Merge node_modules caching from ddollar

* ddollar/master:
  test node_modules caching
  always pass a cache dir
  only cache if there is a node_modules dir
  cache node_modules
  comments
  use npm 1.3.x by default
  ignore .DS_Store
  DRY up the hacking docs
  add a readme section for hackers
  improve documentation in README
  update 'no version specified' devcenter url
  remove extra newline
  add CONTRIBUTING.md
  cat npm-debug.log on exit
  Preserve ENV vars CPATH and CPPPATH (composable buildpacks)

Conflicts:
	README.md
Merge pull request #8 from bkeepers/cache-modules

Cache node_modules