Feature/enhanced build parent child

Utilize defined Parent/Child relationships when building a module from an existing table based on referential integrity rules related to the table.

The changes include:

* Showing parent name/description in queries instead of parent ID
* Including parent rows in create/edit dropdowns for selection
* Including list of related children in jQuery UI Tabs in view_default
* Set nullable fields to NULL instead of default value when nothing is entered
* Disable form fields when user doesn't have Edit permissions
* List pagination