Fix templates and layout a bit

_includes/navigation.html

@@ -1,16 +1,9 @@
 <!-- Navigation -->
-<nav class="navbar {% if page.url == '/index.html' %}affix-top{% else %} affix {% endif %}"
-     role="navigation"
-		{% if page.url == '/index.html' %}
-     data-spy="affix"
-     data-offset-top="700"
-		{% endif %}
-		>
+<nav class="navbar" role="navigation">
 	<div class="container-fluid">
 		<!-- Brand and toggle get grouped for better mobile display -->
 		<div class="navbar-header">
-			<button type="button" class="navbar-toggle" data-toggle="collapse"
-			        data-target="#p2pu-menu">
+			<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#p2pu-menu">
 				<span class="sr-only">Toggle navigation</span>
 				<span class="icon-bar"></span>
 				<span class="icon-bar"></span>
@@ -41,11 +34,11 @@
 					</ul>
 				</li>
 				<li>
-					<a href="http://thepeople.p2pu.org/category/learning/">Discussion</a>
+					<a href="http://community.p2pu.org/category/learning/">Discussion</a>
 				</li>
-				<li>
+				<!--li>
 					<a href="http://thepeople.p2pu.org" class="btn btn-primary">Sign Up</a>
-				</li>
+				</li-->
 			</ul>
 		</div>
 		<!-- /.navbar-collapse -->

_layouts/course_about.html

@@ -2,7 +2,7 @@
 layout: base
 ---
 <div class="row">
-  <div class="content col-lg-12">
+  <div class="col-lg-12">
     {{ content }}
   </div>
 </div>

_layouts/course_page.html

@@ -2,9 +2,10 @@
 layout: base
 ---
 
-<div class="row">
-  <div class="content col-lg-12">
-    {{ content }}
+<div class="container">
+  <div class="row">
+    <div class="content col-lg-12">
+      {{ content }}
+    </div>
   </div>
 </div>
-

index.html

@@ -1,5 +1,5 @@
 ---
-layout: course_about
+layout: base
 ---
 <!-- Banner -->
 <section id="banner">