Merge pull request #23 from telasi/master

user changes
adding document types
index page for Customer::DocumentType model
form for creating Customer::DocumentType
form for editing Customer::DocumentType object
showing properties of Customer::DocumentType object
delete Customer::DocumentType object
fixing url
searching Customer::DocumentType
empty search support
Customer::Document model
save customer form
save customer form
fixing category and ownership combos (Customer::Registration form)
fixing save error for customer::registration
fixing Admin::CustomersController
using Customer::Constants for ownership/category management
adding statuses to Customer::Registration
search customer registrations by status
removing complete/deny actions in Admin::Customer controller