Don't install examples whn installing via npm
Add License
Add typeSearchPath setting for finding user-provided type libraries
Change require/configuration style to match express
Update README and examples to match require style change
Be more forgiving when directories are passed in the file list
Be noisier when file types are mismatched
Don't be tricked into thinking zero-length files are binary
Convert concatenation to postprocess routine to allow type-overrides
Make mmmagic an optional dependency

Due to installation difficulties on some platforms (e.g. CentOS 5.8),
supply a reasonable fallback.
Add support for different port