Improve customer registration/account details field configuration.

As a shop owner I would like to specify what fields are to be displayed on registration form as well as include disclaimer messages.I also would like to configure with fields are editable on profile page.

TD:

Registration
1. Add shop CSV attribute that lists all custom fields to be included on registration form.
2. Add content include to default theme to be included on the registration form
Profile
1. Add shop CSV attribute that lists all custom fields to be included on registration form.
Additional
1. Adjust wicket editors to add checkbox for boolean