Better interlink MoveIt and Tutorials websites (#344)

- MoveIt logo returns to MoveIt main site
- Breadcrumbs include MoveIt main site
- Remove explicit MoveIt website link
- Search docs -> Search tutorials

Author: simonGoldstein

_themes/sphinx_rtd_theme/breadcrumbs.html

@@ -13,7 +13,8 @@
         {% endif %}
       {% endif %}
     </li>
-    <li><a href="{{ pathto(master_doc) }}">Docs</a> &raquo;</li>
+    <li><a href="http://moveit.ros.org">MoveIt</a> &raquo;</li>
+    <li><a href="{{ pathto(master_doc) }}">Tutorials</a> &raquo;</li>
       {% for doc in parents %}
           <li><a href="{{ doc.link|e }}">{{ doc.title }}</a> &raquo;</li>
       {% endfor %}

_themes/sphinx_rtd_theme/layout.html

@@ -98,9 +98,8 @@
       <div class="wy-side-nav-search">
         {% block sidebartitle %}
 
-        <a href="{{ pathto(master_doc) }}">
+        <a href="http://moveit.ros.org">
           <img src="{{ pathto('_static/logo.png', 1) }}"/>
-          <span>Planning Framework</span>
         </a>
 
         {% include "searchbox.html" %}
@@ -132,11 +131,6 @@
 
       {# PAGE CONTENT #}
       <div class="wy-nav-content">
-        <div class="header-override">
-          <p>
-            <a href="http://moveit.ros.org">MoveIt Website</a><br/>
-          </p>
-        </div>
         <div class="rst-content">
           {% include "breadcrumbs.html" %}
           <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">

_themes/sphinx_rtd_theme/searchbox.html

@@ -1,7 +1,7 @@
 {%- if builder != 'singlehtml' %}
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="{{ pathto('search') }}" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search tutorials" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>