updates to the portal detail level handling

- iitc now defaults to lower detail than the standard intel site when zoomed out - it loads much faster, shows more than enough for general use, and is less likely to trigger 'excessive requests' issues
- show more portals plugin: updated for interface changes
- show-less-portals-zoomed-out: deleted (this is now the IITC default)
- new plugin: default-intel-detail - restores the original IITC behaviour on zoom to portal detail level mapping. not recommended

for #656 number 3

code/request_handling.js

@@ -67,13 +67,7 @@ window.startRefreshTimeout = function(override) {
     window.requests._quickRefreshPending = false;
     t = REFRESH*1000;
 
-    // new getThinnedEntitiesV4 involves a LOT more requests when zoomed out above a data level of 13
-    // so, to give the refresh a chance to complete (and also reduce load on niantic servers), boost the refresh interval
-    // in this case
-    // (TODO: complete rewrite of refresh+request handling. don't start timer until complete, and retry error=TIMEOUT requests)
-    if (getPortalDataZoom() <=12 ) t = t*4;
-
-    var adj = ZOOM_LEVEL_ADJ * (18 - getPortalDataZoom());
+    var adj = ZOOM_LEVEL_ADJ * (18 - map.getZoom());
     if(adj > 0) t += adj*1000;
   }
   var next = new Date(new Date().getTime() + t).toLocaleTimeString();