added data download button on user settings

rowers/templates/export_workouts.html

@@ -0,0 +1,33 @@
+{% extends "base.html" %}
+{% load staticfiles %}
+{% load rowerfilters %}
+
+{% block title %}Rowsandall Workouts Summary Export{% endblock %}
+
+{% block content %}
+<div class="grid_12">
+  <form enctype="multipart/form-data" method="post">
+    <div class="grid_4 alpha">
+      <table>
+        {{ form.as_table }}
+      </table>
+      {% csrf_token %}
+    </div>
+    <div class="grid_2">
+      <input class="button green" type="submit" value="Submit">
+    </div>
+  </form>
+  <div class="grid_6 omega">
+    <p>
+      With this form, you can export a summary table for all workouts within a selected date range.
+      The table will be sent to you as a CSV file which can be opened in excel. The table contains
+      links to download stroke data per workout.
+    </p>
+    <p>
+      By setting the start date to your registration date or earlier and the end date to today,
+      you will receive all workout data we are storing for you.
+    </p>
+  </div>
+</div>
+
+{% endblock %}