Doc: Prepare Qt Creator manual for the qt.io online style

  - Add a copyright notice (required for projects external
    to Qt in the new template)
  - Add an .html file with sidebar content

Change-Id: I2c9d965698aa2d2ed01426510b16916ed4fef8cf
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>

doc/config/style/qt5-sidebar.html

+<div class="sectionlist normallist">
+    <div class="heading">
+        <a name="reference"></a>
+        <h2 id="reference">Qt Creator Manual</h2>
+    </div>
+    <div class="indexboxcont indexboxbar">
+        <ul>
+            <li><a href="creator-getting-started.html">Getting Started</a></li>
+            <li><a href="creator-project-managing.html">Managing Projects</a></li>
+            <li><a href="creator-design-mode.html">Designing User Interfaces</a></li>
+            <li><a href="creator-coding.html">Coding</a></li>
+            <li><a href="creator-building-running.html">Building and Running</a></li>
+            <li><a href="creator-testing.html">Debugging and Analyzing</a></li>
+            <li><a href="creator-advanced.html">Advanced Use</a></li>
+            <li><a href="creator-help-overview.html">Getting Help</a></li>
+        </ul>
+    </div>

doc/qtcreator-online.qdocconf

 # Run qdoc from the directory that contains this file.
 include(config/qtcreator-project.qdocconf)
+
+HTML.footer = \
+    "   </div>\n" \
+    "   <p class=\"copy-notice\">\n" \
+    "   <acronym title=\"Copyright\">&copy;</acronym> 2014 Digia Plc and/or its\n" \
+    "   subsidiaries. Documentation contributions included herein are the copyrights of\n" \
+    "   their respective owners. " \
+    "   The documentation provided herein is licensed under the terms of the" \
+    "   <a href=\"http://www.gnu.org/licenses/fdl.html\">GNU Free Documentation" \
+    "   License version 1.3</a> as published by the Free Software Foundation. " \
+    "   Digia, Qt and their respective logos are trademarks of Digia Plc " \
+    "   in Finland and/or other countries worldwide. All other trademarks are property\n" \
+    "   of their respective owners. </p>\n"
+
 include($QT_INSTALL_DOCS/global/qt-html-templates-online.qdocconf)
+
+# Add an .html file with sidebar content, used in the online style
+HTML.stylesheets               += config/style/qt5-sidebar.html