preparation commit for henni

This commit includes:
* sql conversion script
* fixes for the column type for lat and lng fields
* removes prints / console logs
* unneccessary comments
* if no home data is available, we center to germany
* hide non working brand logos
* on closed stations the word "closed" is printed instead of outdated
price
* updates on filling stations is done in chunks of max 10
* configuration separates between development and testing

app/templates/planPitStopForm.html

@@ -30,8 +30,12 @@
                                         </div>
                                     </div>
                                 </td>
-                                <td class="filling_station_{{ 'open' if offer[0].open else 'closed'}}">
-                                    {{ offer[1] }} €/{{ consumable.unit }}
+                                <td>
+                                    {% if offer[0].open %}
+                                        {{ offer[1] }} €/{{ consumable.unit }}
+                                    {% else %}
+                                        Closed
+                                    {% endif %}
                                 </td>
                             </tr>
                         {% endfor %}
@@ -44,6 +48,9 @@
 <script>
     $(document).ready(function() {
         $("#compare").tablesorter({sortList: [[1,0]]});
+        $("img").error(function(){
+            $(this).hide();
+        });
     });
 </script>
 <div class="col-md-2" ></div>