Add note to login page describing the new requirements

Web/Views/Account/Login.cshtml

@@ -1,4 +1,5 @@
-@model MileageTraker.Web.ViewModels.Account.LoginViewModel
+@using System.Configuration
+@model MileageTraker.Web.ViewModels.Account.LoginViewModel
 
 @{
     ViewBag.Title = "Log in";
@@ -9,6 +10,17 @@
     <link href="@Url.Content("~/Content/Account.Login.css")" rel="stylesheet" type="text/css" />
 }
 
+@if (DateTime.Now <= new DateTime(2013, 4, 1))
+{
+    <p class="alert alert-info center-content"><button type="button" class="close" data-dismiss="alert">&times;</button>
+        <strong>Welcome</strong>. Mileage Traker now requires all users
+        to log in before entering mileage. Emails containing instructions
+        to initialize a password have been sent to all drivers - please
+        check your inbox for a message titled "<strong>@ConfigurationManager.AppSettings["InitializePasswordSubject"]</strong>".
+        If you have not received this email, please contact your administrator.
+    </p>
+}
+
 @using (Html.BeginForm("Login", "Account", new { ViewBag.ReturnUrl }, FormMethod.Post, new {@class = "form-login"})) {
 
     @Html.Partial("_StatusMessage")