Merge branch '2.2.2-wip' into exploratory

Conflicts:
	docs/assets/css/bootstrap.css
	docs/scaffolding.html
	docs/templates/pages/scaffolding.mustache

less/labels-badges.less

@@ -27,6 +27,14 @@
   border-radius: 9px;
 }
 
+// Empty labels/badges collapse
+.label,
+.badge {
+  &:empty {
+    display: none;
+  }
+}
+
 // Hover state, but only for links
 a {
   &.label:hover,

less/popovers.less

@@ -20,12 +20,14 @@
   border-radius: 6px;
   .box-shadow(0 5px 10px rgba(0,0,0,.2));
 
+  // Overrides for proper insertion
+  white-space: normal;
+
   // Offset the popover to account for the popover arrow
   &.top     { margin-top: -10px; }
   &.right   { margin-left: 10px; }
   &.bottom  { margin-top: 10px; }
   &.left    { margin-left: -10px; }
-
 }
 
 .popover-title {

less/reset.less

@@ -133,3 +133,73 @@ textarea {
   overflow: auto; // Remove vertical scrollbar in IE6-9
   vertical-align: top; // Readability and alignment cross-browser
 }
+
+
+// Printing
+// -------------------------
+// Source: https://github.com/h5bp/html5-boilerplate/blob/master/css/main.css
+
+@media print {
+
+  * {
+    text-shadow: none !important;
+    color: #000 !important; // Black prints faster: h5bp.com/s
+    background: transparent !important;
+    box-shadow: none !important;
+  }
+
+  a,
+  a:visited {
+    text-decoration: underline;
+  }
+
+  a[href]:after {
+    content: " (" attr(href) ")";
+  }
+
+  abbr[title]:after {
+    content: " (" attr(title) ")";
+  }
+
+  // Don't show links for images, or javascript/internal links
+  .ir a:after,
+  a[href^="javascript:"]:after,
+  a[href^="#"]:after {
+    content: "";
+  }
+
+  pre,
+  blockquote {
+    border: 1px solid #999;
+    page-break-inside: avoid;
+  }
+
+  thead {
+    display: table-header-group; // h5bp.com/t
+  }
+
+  tr,
+  img {
+    page-break-inside: avoid;
+  }
+
+  img {
+    max-width: 100% !important;
+  }
+
+  @page {
+    margin: 0.5cm;
+  }
+
+  p,
+  h2,
+  h3 {
+    orphans: 3;
+    widows: 3;
+  }
+
+  h2,
+  h3 {
+    page-break-after: avoid;
+  }
+}