[#359,view/flot][m]: much better time series support by using flot time plugin - fixes #359.

* Note you still need to set the type of the field to time for this to work properly (i.e. we do not attempt to guess a column is dates as that is very error-prone).

docs/tutorial-views.markdown

@@ -130,6 +130,7 @@ library and the Recline Flot Graph view:
 <script language="javascript" type="text/javascript" src="vendor/flot/excanvas.min.js"></script>
 <![endif]-->
 <script type="text/javascript" src="vendor/flot/jquery.flot.js"></script>
+<script type="text/javascript" src="vendor/flot/jquery.flot.time.js"></script>
 <script type="text/javascript" src="src/view.graph.js"></script>
 {% endhighlight %}