Fix a number of typos in comments and site content

code/boot.js

@@ -178,7 +178,7 @@ window.setupMap = function() {
   // faction-specific layers
   // these layers don't actually contain any data. instead, every time they're added/removed from the map,
   // the matching sub-layers within the above portals/fields/links are added/removed from their parent with
-  // the below 'onoverlayadd/onoverlayremovve' events
+  // the below 'onoverlayadd/onoverlayremove' events
   var factionLayers = [L.layerGroup(), L.layerGroup(), L.layerGroup()];
   for (var fac in factionLayers) {
     map.addLayer (factionLayers[fac]);