[major] change npm to optional dep by using canihaz, reduce package consumption
[fix] check for errors
[dist] update canihaz after windows compatibility fixes, see https://github.com/3rd-Eden/canihaz/commit/c9dc653bae300dd3be33264484b026c576174959
Merge pull request #485 from nodejitsu/nonpm

Change npm to optional dep by using canihaz, reduce package consumption