Some ReSharper cleanup.

Merge

Refactored plugins a little (Support both attributes and implementations for the same derived plugin interface).
Added a localized model binder to make editing with multiple languages much easiar with razor/mvc.
Switched the menu in the admin to use telerik's menu (needs some styling to match old menu).
Added IAdminMenuPlugin and two sample implementations (both attribute and implementation).
Added a test project for Nop.Web.MVC

Added CheckoutAttributeParser unit tests

Added ProductAttributeParser unit tests

Further 'PriceFormatter' unit tests changes

Added public store layout (UNDONE)

Added 'Download' persistence tests

PriceFormatter unit tests

Further download service changes

Added download service (IDownloadService/DownloadService)

Added picture service (IPictureService/PictureService)

Merge

Updated defaultResources.nopres.xml file. Now only used resources are there.

Updated ignore file.

Added StyleCop settings file.

Some ReSharper cleanup.

Added tax service unit tests

Minor changes

CommonHelper.To<> should support invariant culture

Merge (forgot to pull before I commited)

Added localization-support to the admin. Still some refining/styling/code-commenting/prettifying, but the functionality is there. It is ready for abstraction (to be easily implemented in products, etc), but not abstracted yet.

Renamed ServiceAttribute to DependencyAttribute, ServiceRegistrator to DependencyAttributeRegistrator

Removed a lot of not-used configuration things. Moved some settings to old NopConfig file

> Added support for task scheduling
> Modified custom AutofacRequestLifetimeHttpModule to work without HttpContext