Starting to test some controller

* BlogUnitTest.cs: Should test the user registration

* NpgsqlBlogProvider.cs: Fixes usage of Npgsql upgrade to latest
  version

* TestAPI.csproj: switch to .Net framework 4.5.1

* AccountController.cs: refactoring password validation

* CalendarController.cs:
* WorkFlowController.cs: SendActivationMessage became an extension
  method

* style.css: menu items already have a background and color, since
  they're `<A>` tags

* Unregister.aspx:
* AccountController.cs: refactoring user registration

* BlogsController.cs: Fixes a confusion between Author and reader ...

* YavscHelpers.cs: refactoring the password reset

* App.master: no more <div class="menuitem">, they're hyperlinks

* Login.aspx:
* Profile.aspx: refactoring the user registration

* BlogEntryCollection.cs: implements a method to filter a given post
  collection in order to be displayed tu a given user or anonymous

TestAPI/BlogUnitTest.cs

@@ -0,0 +1,76 @@
+//
+//  BlogUnitTest.cs
+//
+//  Author:
+//       Paul Schneider <paul@pschneider.fr>
+//
+//  Copyright (c) 2015 GNU GPL
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+using NUnit.Framework;
+using System;
+using Yavsc.Model.Blogs;
+using Yavsc.Controllers;
+using System.Web.Mvc;
+using System.Web.Security;
+
+namespace TestAPI
+{
+	[TestFixture ()]
+	public class BlogUnitTest
+	{
+
+		public string UserName { get; set; }
+		public string Email { get; set; }
+		public string Password { get; set; }
+
+
+		AccountController accountController;
+		[TestFixtureSetUp]
+		public void Init()
+		{
+			accountController = new AccountController ();
+		}
+
+		[Test ()]
+		public void Register ()
+		{
+			ViewResult actionResult = accountController.Register (
+				new Yavsc.Model.RolesAndMembers.RegisterViewModel () {
+					UserName = UserName, Email = Email,
+					Password = "tpwd", ConfirmPassword = Password, 
+					IsApprouved = true
+				}, 
+				"/testreturnurl") as ViewResult;
+			Assert.AreEqual (actionResult.ViewName, "RegistrationPending");
+			MembershipUser u = Membership.GetUser (UserName, false);
+			Assert.NotNull (u);
+			Assert.False (u.IsApproved);
+			// TODO : check mail for test, 
+			// get the validation key from its body,
+			// and use the accountController.Validate(username,key)
+			u.IsApproved = true;
+			Membership.UpdateUser (u);
+			Assert.True (u.IsApproved);
+		}
+		[TestFixtureTearDown()]
+		public void Unregister()
+		{
+			ViewResult actionResult  = 
+				accountController.Unregister (UserName, true)  as ViewResult;
+			Assert.AreEqual (actionResult.ViewName, "Index");
+		}
+	}
+}
+