Replace constant DEBUG to use in Config. Remove start profiler from FrontController (moved to bootstrap).

model/MongoStatement.php

@@ -138,7 +138,7 @@ class MongoStatement extends DbStatement
         $this->result = false;
         $mongo = $this->driver->getConnection();
         if ($mongo instanceof Mongo) {
-            if (DEBUG) {
+            if (Config::get('PROFILER_DETAILS')) {
                 $profiler = Profiler::getInstance()->profilerCommand('Mongo', $request);
                 $result = $request->execute();
                 $profiler->end();