Finishes refactoring users_projects_table.
Fixes issue with relative paths for help and citing static pages when
trying to return. This creates dynamic pages now that find the url and
properly redirect to the home page.
Adds functional test to ensure that users_projects_table relationship is
working correctly, ie. when one is deleted the association table
correctly updates.
Refactored some controller_global methods. This requires more work to
streamline the fetching of database objects.