Refactored the node module to load the common passwords when the module is loaded, rather than each time a password is checked. Common passwords are stored in an object as keys, for faster lookup.
Forgot to correct the argument to the split() method; the file containing the common passwords has \n line endings, not \r\n line endings.
Merge pull request #4 from michaelhodgins/master

Efficiency improvement to the Node.js module.