Removed formbuilder and orderbutton extenstion install information

These extensions are core modules and do not needed to be installed .
Added order settings option to show addon orders in order lists for admin
Order admin API unit test updated to match last changed to the code
Return statement is not necessary here
Removed return outside of the function
Finish redirects bugfix
Displaying discount and price after discount in admin area order view
ircmaxell/password_compat library added

This library is intended to provide forward compatibility with the password_* functions being worked on for PHP 5.5.
https://github.com/ircmaxell/password_compat
Box_Password class created as a wrapper of password_* functions
Box_Password unit tests created
Box_password added to Dependency Injector
setPass and getTempPass function removed from Model_Client

deprecated and not used!
authorizeClient() created

uses password_* functions wrapper (Box_Password) to authorize user
authorizeAdmin() created
sha1(pass) refactored to Box_Database::hashIt(pass)
password backward compatibility added

This should update existing user hashed password to new value at the login action.
unit tests updated
integration test updated
unit test updated
Finish Feature-improv-pass-hashing