Collection: Add support for validators to page control.
Module base class: Add optional template parameter name.
Shop: Removed extra delivery methods from checkout template.
Shop: Change template parser parameter name in buyer template.
Shop: Stop including shopping cart JavaScript autoamtically.

Option was added to tell shop to include JavaScript for both checkout
and shopping cart. This helps us avoid cluttering namespace and
downloading unused files.
Shop: Use validator method for page control.
Shop: Use Caracal namespace for shopping cart.
Added user data system table.
SWFObject: Embed Flash after `load` event has been triggered.
System managers: Added namespace for user variables.
Contact form: Import missing namespace.
Contact form: Fix invalid language constant name when sending.
Contact form: Get first mailer when none is specified.