Increased timeout to prevent problems with large repositories.

On large repository request handling could take significant time. By default ASP.NET gives app 110 seconds before it will abort handling. When testing on repository ~600 Mb in size with several thousands of commits - git clone command ended with HTTP timeout error. After timeout was increased - problem gone.

GitTools.WebApp/Web.config

@@ -31,7 +31,7 @@
       </providers>
     </roleManager>
     <!--100M-->
-    <httpRuntime maxRequestLength="102400" />
+    <httpRuntime executionTimeout="21600" maxRequestLength="102400" />
     <httpHandlers>
       <add verb="GET,POST" path="*.git" type="GitTools.GitHandler,GitTools" />
     </httpHandlers>