Add backload for multiple file upload

Web/Web.config

@@ -4,6 +4,14 @@
   http://go.microsoft.com/fwlink/?LinkId=301880
   -->
 <configuration>
+  <configSections>
+    <!--
+      IMPORTANT NOTE: Starting with release 2.0 the config file is in the "\Backload" folder.
+      For more on config options and settings refer to the wiki on GitHub (https://github.com/blackcity/Backload) 
+      You can also find all config options in the "Web.Backload.Default.txt" file (Backload\Config\_Defaults folder).
+    -->
+    <section name="backload" type="Backload.Configuration.BackloadSection, Backload, Version=2, Culture=neutral, PublicKeyToken=02eaf42ab375d363" requirePermission="false" />
+  </configSections>
   <appSettings>
     <add key="webpages:Version" value="3.0.0.0" />
     <add key="webpages:Enabled" value="false" />
@@ -12,7 +20,7 @@
   <add key="TimeZoneId" value="Pacific Standard Time" /></appSettings>
   <system.web>
     <compilation debug="true" targetFramework="4.5" />
-    <httpRuntime targetFramework="4.5" />
+    <!-- max 1GB --><httpRuntime targetFramework="4.5" executionTimeout="3600" maxRequestLength="1000000000" />
   <globalization culture="en-US" uiCulture="en-US" enableClientBasedCulture="false" requestEncoding="utf-8" responseEncoding="utf-8" /></system.web>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
@@ -38,4 +46,13 @@
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>
+<!-- Note: Web.Backload.config is now in the "\Backload" folder. For previous installations you can leave it in the root folder. --><backload configSource="Backload\Web.Backload.config" /><system.webServer>
+    <security>
+      <requestFiltering>
+       <!-- max 1GB -->
+        <requestLimits maxAllowedContentLength="1000000000" />
+      </requestFiltering>
+    </security>
+    <!-- Allow http DELETE method-->
+    <modules runAllManagedModulesForAllRequests="true" />
+  </system.webServer></configuration>