traviscooper/node-wkhtml — pull request #16 by tobi-or-not (2014-04-11 10:45:14+00:00)
Title: Corrects executable name for image generation and fixes malformed package.json

As far as I can tell, the executable name wkhtmltoimg is either very old or never existed. Thus, I suggest changing it.
The malformed package.json prevents the intallation throught npm.