added unit tests for promise support
Merge branch 'master' of github.com:sevcsik/node-couchdb-model into promise-support
removed .error, because appearently there's no such thing
fixed chai-as-promised require
added promise return using Q.ninvoke / npost, fixed spec
removed chai-as-promised calls
removed bragging about chai-as-promised
replaced npost calls with ninvoke
fixed delete test
Merge branch 'promise-support' of github.com:sevcsik/node-couchdb-model