Begin update to migrate manual content into the git repository

The goal here is to get all the documentation in one place including
the class reference, text based manual, tutorials, etc.

docs/manual.css

@@ -0,0 +1,22 @@
+.tabs, .tabs2, .tabs3, .navpath ul {
+    background-image: none;
+    background-color: #333;
+    border: none;
+    border-bottom: 1px solid #575757;
+}
+
+.tablist li, .navpath li {
+    background-image: none;
+    background-color: #333;
+}
+
+.tablist a, .navpath li.navelem a {
+    color: #ccc;
+    text-shadow: 0px 1px 1px black;
+}
+
+.tablist a:hover, .navpath li.navelem a:hover {
+    background-image: none;
+    background-color: #444;
+    color: #ccc;
+}