use example of https://github.com/Mithgol/node-abstract-syntax-tree/

Permanent URL: https://github.com/Mithgol/node-abstract-syntax-tree/blob/6045fbafc6f90f45c70c2b01bac2d4f92066f423/README.md#example
hoist the `require('uue')`
widen the application of the final character replacements
version 0.6.0: processes UUE code blocks (note: no test coverage yet)