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* on closed stations the word "closed" is printed instead of outdated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/account.html

@@ -82,9 +82,9 @@
             </div>
         </div>
     <script>
-        var lat = {{ map_pos[0] }};
-        var long = {{ map_pos[1] }};
-        var zoom = {{ map_pos[2] }};
+        var lat = {{ map_pos[0] or 0 }};
+        var long = {{ map_pos[1] or 0 }};
+        var zoom = {{ map_pos[2] or 0 }};
         var init_filling_station = JSON.parse({{ fs|tojson }});
         activate_map('mapdiv', ['get_button', 'set_home_button', 'go_home_button'], lat, long, zoom, init_filling_station);
     </script>

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>