Switch to using string instead of bool for checkbox values

WebCms/Views/Shared/Boolean.cshtml

@@ -0,0 +1,22 @@
+@model Boolean?
+
+@{
+    Layout = "_FieldLayout.cshtml";
+
+    var htmlAttributes = new RouteValueDictionary();
+    if (ViewBag.@class != null)
+    {
+        htmlAttributes.Add("class", ViewBag.@class);
+    }
+}
+
+@if (Model.HasValue && Model.Value)
+{
+    <input id="@ViewData.TemplateInfo.GetFullHtmlFieldId("")" name="@ViewData.TemplateInfo.GetFullHtmlFieldId("")"
+           type="checkbox" checked="checked" />
+}
+else
+{
+    <input id="@ViewData.TemplateInfo.GetFullHtmlFieldId("")" name="@ViewData.TemplateInfo.GetFullHtmlFieldId("")"
+           type="checkbox" />
+}

WebCms/Views/Shared/EditorTemplates/Checkbox.cshtml

@@ -0,0 +1,15 @@
+@model string
+@{
+    Layout = "_FieldLayout.cshtml";
+
+    var htmlAttributes = new RouteValueDictionary();
+    if (ViewBag.@class != null)
+    {
+        htmlAttributes.Add("class", ViewBag.@class);
+    }
+
+    var isChecked = !string.IsNullOrEmpty(Model);
+    var id = ViewData.TemplateInfo.GetFullHtmlFieldId("");
+}
+
+<input id="@id" name="@id" type="checkbox" @if(isChecked) {<text>checked="checked"</text>} />

WebCms/Views/Shared/_StatusMessage.cshtml

@@ -1,14 +1,14 @@
 @if (TempData.ContainsKey("StatusMessage"))
 {
-    <p class="alert @Html.Raw(TempData["StatusMessage-Type"]) alert-dismissible fade show">
+    <div class="alert @Html.Raw(TempData["StatusMessage-Type"]) alert-dismissible fade show">
         <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
         @Html.Raw(TempData["StatusMessage"])
-    </p>
+    </div>
 }
 else if (ViewBag.StatusMessage != null)
 {
-    <p class="alert alert-dismissible fade show">
+    <div class="alert alert-dismissible fade show">
         <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
         @ViewBag.StatusMessage
-    </p>
+    </div>
 }