[WIP] Support Node 0.11.x (and forthcoming 0.12.x)

Trying to support Node 0.11.x (and forthcoming 0.12.x)

- [x] add 0.11 to travis.yml
- [ ] spike
- [ ] support 0.11.x on submodules
- [ ] integrate submodules
- [ ] README
- [ ] CHANGELOG