Bug & layout fixes

* Index.aspx:
* Title.aspx:
* YavscModel.csproj:
* BlogEntry.cs:
* yavsc.scrollnotif.js:
* AccountController.cs:
* BlogEntryCollection.cs: refactoring

* yavsc.tags.js: Implements a js call
to the tag & untag methods

* PostActions.ascx: a better html structure

* BasePost.cs: refactoring:
allows the "PostActions" user control to use a common base object as
  post reference

* NpgsqlBlogProvider.cs: implements the tag methods on db

* ResultPages.cs: A multi-pages result meta info when one page only

* yavsc.circles.js:
* AccountController.cs: code formatting

* BlogsController.cs: Untag a post

* style.css: yastyle, yet a better one.

* BlogsController.cs: View the Title after edition

* App.master:
* UserPosts.aspx: a nicer html structure

* yavsc.js: Fixes notice & dimiss js

* Login.aspx: refactoring

* Edit.aspx: better html

* UserPost.aspx: A promess to be allowed to tag.

* Web.csproj: Adds yavsc.tags.js and yavsc.scrollnotifs.js to the
  project decription.

* BlogManager.cs: Makes the blog manager expose of the new `UnTag`
  method

* BlogProvider.cs: introduces a method to `untag`

* FindBlogEntryFlags.cs: Find post entry by tag

* LocalizedText.resx:
* LocalizedText.Designer.cs: new translations: - "Tag"
- "Edit"

* LocalizedText.fr.resx:
* LocalizedText.fr.Designer.cs: nouvelles traductions: - "Tag"
- "Edit"

* Profile.cs: a nicer stack trace at buggy usage

web/Models/App.master

@@ -19,7 +19,8 @@
 <script type="text/javascript">
 var apiBaseUrl = '<%=Url.Content(Yavsc.WebApiConfig.UrlPrefixRelative)%>';
 </script> 
-<script src="/Scripts/yavsc.js"></script>
+<script src="<%=Url.Content("~/Scripts/yavsc.js")%>"></script>
+<script src="<%=Url.Content("~/Scripts/yavsc.scrollnotif.js")%>"></script>
 <asp:ContentPlaceHolder id="head" runat="server">
 </asp:ContentPlaceHolder>
 </head>
@@ -46,6 +47,7 @@ Yavsc.notice('<%=notice%>');
 </header>
 <nav data-type="background" data-speed="2">
 <% if (Membership.GetUser()==null) { %>
+
 <a href="<%= Url.Content("~/Account/Login/?returnUrl=") + Url.Encode( Request.Url.PathAndQuery )%>" class="menuitem" >
 <i class="fa fa-sign-in">Connexion</i> 
 </a>