usage info is wrong

[vladp]

The current info says " var elasticsearch = require('elasticsearch'); var es = elasticsearch({index: 'kitteh'}); " first the name is 'node-elastisearch' but even after that, the last line has still an error says elasticsearch is not a function

[gsf]

The name of this module in npm is "elasticsearch". You'll want to npm install elasticsearch or include it in the dependencies of package.json for your project before using it. See http://nodejs.org/api/modules.html.