Simplifies via modularity and better use of rework internals.

Leverages rework-npm for resolution of top level input file.

Input file is now assumed to be ./index.css if no input is provided.

Help must be explicitly asked for with cli with -h or --help.

Catches errors from either rework or autoprefixer for more helpful feedback of what to fix.

Moves file writing output into a module.

Adds hook and module for watching each imported CSS module file, though no actual watching takes place yet.

Adds API content to help and updates formatting with tables.

Moves external preprocess steps for rework and autoprefixer into preprocess module.

Replaces clean-css dependency with built-in rework compress option.
Merge branch 'master' of github.com:voicekick/cssmod