Improves notification system

* ICalendarManager.cs: WIP booking TODO a calendar provider

* NpgsqlProfileProvider.cs: Fixes the defaultValue specification from
  config file

* BlogsController.cs:
* AccountController.cs:
* CalendarController.cs: refactoring : the Yavsc controller name

* instdbws.sql: a new profile value : a boolean, `AllowCookies` :'{

* style.css: a class to display notification

* HomeController.cs: Notifies users this site uses cookies (what for
  an information!)
If authenticated, at dimissing this notification, the user's profile
  is updated,
and he'll not mess up anymore with the info.

* App.master:
* YavscHelpers.cs: adds usage of click_action value at
displaying a notification.

* yavsc.js: Implements the notification `click_action`

* Web.config: * enables anonymous profiles
* adds a new `allowcookies` profile property

* Web.csproj: Yavsc controller refactoring

* YaEvent.cs:
* IFreeDateSet.cs: WIP booking

* LocalizedText.resx:
* LocalizedText.fr.resx:
* LocalizedText.Designer.cs:
* LocalizedText.fr.Designer.cs: implements the message "uses cookies"

* YavscModel.csproj: refactoring

* Notification.cs: The Yavsc otification will start as a Google one
  ...
many properties are not yet used, but all seems usefull.

* Web.config: code prettying

* YavscController.cs: Gives Yavsc a concrete base controller

yavscModel/Calendar/YaEvent.cs

@@ -26,13 +26,8 @@ using Yavsc.Model;
 
 namespace Yavsc.Model.Calendar
 {
-
-	/// <summary>
-	/// NF event.
-	/// </summary>
-	public class YaEvent
+	public class BaseEvent
 	{
-
 		/// <summary>
 		/// The title.
 		/// </summary>
@@ -45,6 +40,7 @@ namespace Yavsc.Model.Calendar
 		[Required(ErrorMessage="Please, choose a Description.")] 
 		[Display(ResourceType=typeof(LocalizedText),Name="Description")]
 		public string Description { get; set; }
+
 		/// <summary>
 		/// The location.
 		/// </summary>
@@ -65,6 +61,13 @@ namespace Yavsc.Model.Calendar
 		[Required(ErrorMessage="Please, choose an End Date.")] 
 		[Display(ResourceType=typeof(LocalizedText),Name="EndDate")]
 		public DateTime EndDate { get; set; }
+
+	}
+	/// <summary>
+	/// NF event.
+	/// </summary>
+	public class YaEvent : BaseEvent
+	{
 		/// <summary>
 		/// The name of the NF provider.
 		/// </summary>
@@ -90,7 +93,7 @@ namespace Yavsc.Model.Calendar
 		/// <summary>
 		/// The image locator.
 		/// </summary>
-		[Display(ResourceType=typeof(LocalizedText),Name="ImgLocator")]
-		public string ImgLocator { get; set; }
+		[Display(ResourceType=typeof(LocalizedText),Name="Photo")]
+		public string Photo { get; set; }
 	}
 }