Web.config con elmah habilitado

gistfile1.xml

<?xml version="1.0"?>
<!-- 
    Note: As an alternative to hand editing this file you can use the 
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in 
    machine.config.comments usually located in 
    \Windows\Microsoft.Net\Framework\v2.x\Config 
-->
<configuration>
	<configSections>
		
		<!--<sectionGroup name="elmah">
      <section name="security" requirePermission="false" type="Elmah.SecuritySectionHandler, Elmah" />
      <section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah" />
      <section name="errorMail" requirePermission="false" type="Elmah.ErrorMailSectionHandler, Elmah" />
      <section name="errorFilter" requirePermission="false" type="Elmah.ErrorFilterSectionHandler, Elmah" />
    </sectionGroup>-->
		
	</configSections>
	<!--<elmah>
    <errorLog type="Elmah.XmlFileErrorLog, Elmah" logPath="~/OpenSpanServerLogs" />
    <security allowRemoteAccess="true" />
  </elmah>-->
	<appSettings>
	  <add key="ClientValidationEnabled" value="true" />
	  <add key="UnobtrusiveJavaScriptEnabled" value="true" />
	</appSettings>
	<connectionStrings />
	
	<system.web>
		<customErrors mode="RemoteOnly" defaultRedirect="~/StaticContent/Unknown">
			<error statusCode="404" redirect="~/StaticContent/PageNotFound" />
		</customErrors>
		<!-- 
            Set compilation debug="true" to insert debugging 
            symbols into the compiled page. Because this 
            affects performance, set this value to true only 
            during development.
    -->
		<compilation debug="true" targetFramework="4.0">
			<assemblies>
				<add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
				<add assembly="Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
				<add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
				<add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
				<add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
			  <add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
			  <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
			</assemblies>
		</compilation>
		<!--
            The <authentication> section enables configuration 
            of the security authentication mode used by 
            ASP.NET to identify an incoming user. 
    -->
		<authentication mode="Forms">
			<forms loginUrl="~/Account/Login" timeout="60" slidingExpiration="true" />
		</authentication>
		<sessionState timeout="90" />
		<!-- Deny Anonymous users. -->
		<authorization>
			<deny users="?" />
		</authorization>
		<membership>
		</membership>
		<profile>
		</profile>
		<roleManager enabled="false">
		</roleManager>
		<httpHandlers>
			<!--<add verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" />-->
		</httpHandlers>
	</system.web>
	<system.web.extensions />
	<system.webServer>
		<modules runAllManagedModulesForAllRequests="true">
			<!--<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" />-->
		</modules>
		<handlers>
			<remove name="UrlRoutingHandler" />
			<!--<add name="Elmah" verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" />-->
		</handlers>
	</system.webServer>
	<runtime>
		<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
		  <dependentAssembly>
		    <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
		    <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="3.0.0.0" />
		  </dependentAssembly>
		</assemblyBinding>
	</runtime>
</configuration>