py-rjsmin: add version 1.2.1

rJSmin is a javascript minifier written in python.

The minifier is based on the semantics of jsmin.c by Douglas Crockford.

The module is a re-implementation aiming for speed, so it can be used
at runtime (rather than during a preprocessing step). Usually it produces
the same results as the original jsmin.c.

(markd)