Added support for writing attachments to local (or UNC) paths for a more traditional means of serving static content (CDNs with Origin Server).

- I have updated the work done for #1015 to support the Local storage option in the status page ![jabbr - status](https://f.cloud.github.com/assets/234704/1294568/71368ece-3086-11e3-98c7-100746bb1489.png)

- Updated the Administration page to reflect the new configuration values (LocalBlobStoragePath and LocalBlobStorageUriPrefix) ![jabbr - administration page](https://f.cloud.github.com/assets/234704/1294554/f4ef9554-3085-11e3-9297-d0fca6d7ed0a.png)

- Added several string resources in LanguageResources.resx to support the  Administration page additions

Here is a screenshot of it in action:
![jabbr](https://f.cloud.github.com/assets/234704/1294572/8c768d9c-3086-11e3-8806-8c01f1b7ce43.png)