Added node_modules folder to gitignore.
Merge branch 'master' of github.com:mozilla/kuma
Merge branch 'master' of github.com:mozilla/kuma
Merge branch 'master' of github.com:mozilla/kuma
Merge branch 'master' of github.com:mozilla/kuma
Merge branch 'master' of github.com:mozilla/kuma
Merge branch 'master' of github.com:mozilla/kuma
Merge branch 'master' of github.com:mozilla/kuma