Update Umbraco to 7.12.2

WebCms/Umbraco/lib/bootstrap/css/bootstrap.cosmo.min.css

@@ -1,4 +1,4 @@
-@font-face {
+@font-face {
   font-family: 'Open Sans';
   font-style: normal;
   font-weight: 400;

WebCms/Umbraco/lib/bootstrap/less/navbar.less

@@ -193,10 +193,10 @@
 
 // Reset container width
 // Required here as we reset the width earlier on and the grid mixins don't override early enough
-.navbar-static-top .container,
+.navbar-static-top .container,  
 .navbar-fixed-top .container,
-.navbar-fixed-bottom .container {
-  #grid > .core > .span(@gridColumns);
+.navbar-fixed-bottom .container { 
+width: (@gridColumnWidth * @gridColumns) + (@gridGutterWidth * (@gridColumns - 1));
 }
 
 // Fixed to top

WebCms/Umbraco/lib/bootstrap/less/thumbnails.less

@@ -31,15 +31,17 @@
   display: block;
   padding: 4px;
   line-height: @baseLineHeight;
-  border: 1px solid #ddd;
+  border: 1px solid @gray-8;
   .border-radius(@baseBorderRadius);
   .box-shadow(0 1px 3px rgba(0,0,0,.055));
   .transition(all .2s ease-in-out);
 }
-// Add a hover/focus state for linked versions only
-a.thumbnail:hover,
-a.thumbnail:focus {
-  border-color: @linkColor;
+// Add a hover/focus state for linked versions only.
+a.thumbnail:hover, 
+a.thumbnail:focus,
+a div.thumbnail:hover,
+a div.thumbnail:focus {
+  border-color: @turquoise;
   .box-shadow(0 1px 4px rgba(0,105,214,.25));
 }