- added "notice" panel for upcoming release information

- improved layout for "release dialog" (GitHub API)
- improved pagespeed (removed render blocking javascripts)
- improved map scrollbar configuration
- improved Chrome browser custom scrollbar layout
- removed "sign up" buttons from "map panels", closed #214

app/main/controller/api/github.php

@@ -40,7 +40,7 @@ class GitHub extends Controller\Controller {
     public function releases($f3){
         $cacheKey = 'CACHE_GITHUB_RELEASES';
         $ttl = 60 * 30; // 30min
-        $releaseCount = 3;
+        $releaseCount = 4;
 
         if( !$f3->exists($cacheKey) ){
             $apiPath = $this->getF3()->get('PATHFINDER.API.GIT_HUB') . '/repos/exodus4d/pathfinder/releases';