Enhance the Tool Shed API to provide information about users that is public (i.e., public username) and to include a function for creating a new user.  Add a Tool Shed API script that retrieves all of the pubic information about users from a Tool Shed, automatically generates test email accounts and test passwords, and creates the list of users in another Tool Shed.  This script streamlines the process of populating a development Tool Shed with users, enabling import of a repository capsule exportied from the specified Tool Shed.  This simplifies the process of developing new repository hierarchies in a local development Tool Shed.