Fixing outdated code that breaks this module

(1) process.ARGV -> process.argv

(2) Removing a hack that messes with `require.paths` which you can't do anymore
Leaving files unspecified so that lib/ and bin/ directories are part of package

Seems like package.json was this way because of an old version of npm
Merge pull request #1 from ccheever/master

Fixing outdated code that breaks this module