First pass (from some old code notes) of a Club Model (a form of Group).

Bug fixes to revision r596. User Account field in Developer User Profile view needs to be an email not a login name. Header title of User Profile Developer view, when form validation failes is now showing correct value ("Modify existing ..." instead of "Create new user ...").

Add /site/user/profile Developer view for editing arbitrary User entities. Update /user/profile edit() view to fix TODO about updating the URL when a POST of the form changes the link_name of the User. Add a Create New User link to the base.html sidebar mock-up.

Fix off-by-one corner case discovered during testing of /user/profile.

Added getSingleIndexedParamValue() that retrieves an index into a list of values from the named query parameter, and then indexes into the supplied list of values to return the corresponding value from the list. Used to convert numeric index query parameters passed by POST to the GET redirect target, so that the GET code can display messages, etc. (without passing the message itself as a query argument and having to escape it or have silly people pass in their own...).

Added replaceSuffix(), isReferrerSelf(), and redirectToChangedSuffix() to implement the TODO in the User profile views where the link name portion of the URL needs to change when the link_name Property is updated by the form.

Fixed too long lines and deleted unused imports in id_user.py.

New default values for page title, header title and body of site home page.

Documentation updates and one typo fix.

Add a td.formfielderrorlabel style, to highlight field labels that have errors.