Removed HttpServer.

Re-implemented everything using ASP.NET.
Changed some requests to use JSON instead of FORM data.
Some work towards deleting the FIXMEGlobal instance.
Auth is missing, XSRF does not work correctly.

Duplicati/Server/Duplicati.Server.Serialization/Interface/IDynamicModule.cs

@@ -19,9 +19,6 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 // DEALINGS IN THE SOFTWARE.
 
-using System;
-using System.Collections.Generic;
-
 namespace Duplicati.Server.Serialization.Interface
 {
     /// <summary>