Update feeds once an hour (clean commit)

This reverts commit abad39eaa8.

inc/feed.php

@@ -60,7 +60,7 @@ class Feed extends PhpObject {
 	}
 	
 	public function checkUpdateFeed($sProjectMode) {
-		//Feed updated once an hour in Blog Mode
+		//Feed updated once a day in Blog Mode
 		if($sProjectMode == Project::MODE_BLOG && date('Y-m-d-H', $this->iLastUpdate) != date('Y-m-d-H')) $this->updateFeed();
 	}