set maxZoom to 18, because current tiles don't support zoomlvl 19

app/templates/game_bunny_dashboard.html

@@ -63,7 +63,7 @@
     var map = L.map( 'map', {
         center: [52.2, 5.3],
         minZoom: 6,
-        maxZoom: 19,
+        maxZoom: 18,
         bounds: [[50.5, 3.25], [54, 7.6]],
         zoom: 8
     });

app/templates/game_hunter_dashboard.html

@@ -71,7 +71,7 @@
     var map = L.map( 'map', {
         center: [52.2, 5.3],
         minZoom: 6,
-        maxZoom: 19,
+        maxZoom: 18,
         bounds: [[50.5, 3.25], [54, 7.6]],
         zoom: 8
     });

app/templates/game_owner_dashboard.html

@@ -94,7 +94,7 @@
     var map = L.map( 'map', {
         center: [52.2, 5.3],
         minZoom: 6,
-        maxZoom: 19,
+        maxZoom: 18,
         bounds: [[50.5, 3.25], [54, 7.6]],
         zoom: 8
     });

app/templates/game_player.html

@@ -79,7 +79,7 @@
     var map = L.map('map', {
         center: ['{{ last_location.latitude or 52.2 }}', '{{ last_location.longitude or 5.3 }}'],
         minZoom: 6,
-        maxZoom: 19,
+        maxZoom: 18,
         bounds: [
             [50.5, 3.25],
             [54, 7.6]

app/templates/objective.html

@@ -66,7 +66,7 @@
     var map = L.map( 'map', {
         center: ['{{ objective.latitude }}', '{{ objective.longitude }}'],
         minZoom: 6,
-        maxZoom: 19,
+        maxZoom: 18,
         bounds: [[50.5, 3.25], [54, 7.6]],
         zoom: 10
     });