Newer node engine support

[junosuarez]

I get the following warning when installing:

npm WARN engine bliss@1.0.1: wanted: {"node":">= 0.5.0 < 0.7.0"} (current: {"node":"v0.8.15","npm":"1.2.0"})

However, it seems to be running without issue on:

{ http_parser: '1.0',
  node: '0.8.15',
  v8: '3.11.10.25',
  ares: '1.7.5-DEV',
  uv: '0.8',
  zlib: '1.2.3',
  openssl: '1.0.0f' }

Any chance you could update the version specified in package.json?

[cstivers78]

If you make the change and submit a pull request, then I can merge it in.