[Distutils] distlib updated with scripts API

[Vinay Sajip]

I've updated distlib[1] with a scripts API - functionality for installing
scripts.

The design and implementation covers shebang adjustment and optional native
Windows executable installation (like setuptools).

The update includes:

A short tutorial showing how to use the API. [2]
A discussion of the design of the API. [3]
Reference documentation for the API. [4]

I'd be interested in any and all feedback on this.

Regards,

Vinay Sajip

[1] https://bitbucket.org/vinay.sajip/distlib/
[2] http://distlib.readthedocs.org/en/latest/tutorial.html#using-the-scripts-api
[3] http://distlib.readthedocs.org/en/latest/internals.html#the-scripts-api
[4]
http://distlib.readthedocs.org/en/latest/reference.html#the-distlib-scripts-package