relax SVN archive

The documentation for the auto-generated user functions is now being created.

This is stored in the __relax_help__ string, and mimics the old system, reusing many of the base
functions. All the user function data required for the prompt interface is now being passed in to
the object.

Renamed the private _args variable to the non-private kargs.

The user function object now has a __repr__ method to give better feedback to the user.

Primitive auto-generation of the user functions.

This simply creates an object for the user function, but it is not callable yet or uses any of the
user function data.

Modified the pipe user function class description.

The __description__ attribute from the old help system is now supported in the auto-generated classes.

The new auto-generated user function classes now fit into the prompt help system.

Documented the prompt-based help system _Helper.__call__() method.

The auto-generated user class object now accepts the desc arg and stores it for use in the help system.

Added a __repr__ method to the user function class objects for presenting a better message to users.