begun refactor of image support: * created new ecommerce::resource package and moved eg. thumbnail creation there from various places * added support for two sizes of thumbnail * added smaller thumbnail to category-browse page * changed default product template to use larger thumbnail and use new ::resource procs * fixed bulk image importing page
change ad_verify_and_get_user_id to ad_conn user_id, change ad_maybe_redirect_for_registration to auth::require_login, make some db_ and dt_ function -public