Merge branch 'plotters' into 'scheduler'

[Plotters] It's possible to see the plotters available with various information on the plotter

Plotters view added to the platform. Contains:

• Plotters list and tables (and possibility to edit as admin)
• Plotter's view (public + user)
• Contains plotter's code and parameters + description
• Possibility to see reports containing the plotter (user + public)
• Added Plotters to statistics panel and activity stream user panel
• Updated parts of the view and API
• Added Plotters to drop down menus

See merge request !188 (merged)

beat/web/plotters/templates/plotters/panels/actions.html

+{% comment %}
+ * Copyright (c) 2016 Idiap Research Institute, http://www.idiap.ch/
+ * Contact: beat.support@idiap.ch
+ * 
+ * This file is part of the beat.web module of the BEAT platform.
+ * 
+ * Commercial License Usage
+ * Licensees holding valid commercial BEAT licenses may use this file in
+ * accordance with the terms contained in a written agreement between you
+ * and Idiap. For further information contact tto@idiap.ch
+ * 
+ * Alternatively, this file may be used under the terms of the GNU Affero
+ * Public License version 3 as published by the Free Software and appearing
+ * in the file LICENSE.AGPL included in the packaging of this file.
+ * The BEAT platform is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.
+ * 
+ * You should have received a copy of the GNU Affero Public License along
+ * with the BEAT platform. If not, see http://www.gnu.org/licenses/.
+{% endcomment %}
+{% load plotter_tags %}
+
+<div class="btn-group btn-group-sm action-buttons pull-right">
+
+  <!-- Edit, as admin -->
+  {% if request.user.is_staff %}
+  <a class="btn btn-default btn-edit" href="{% url 'admin:plotters_plotter_change' object.id %}" data-toggle="tooltip" data-placement="bottom" title="Edit as admin"><i class="fa fa-cogs fa-lg"></i></a>
+  {% endif %}
+
+  {% if open_source and not request.user.is_anonymous %}
+  <!-- Fork button, needs to be logged in -->
+  <a class="btn btn-default btn-fork" href="{% url 'plotters:fork' object.author.username object.name object.version %}" data-toggle="tooltip" data-placement="bottom" title="Fork"><i class="fa fa-code-fork fa-lg"></i></a>
+  {% endif %}
+
+</div>