* Lots of improvements to info extraction system

* MUCH faster browsing in file base
* Better release year estimation
* New tool: exiftool2desc

core/mime_util.js

@@ -6,5 +6,9 @@ const mimeTypes	= require('mime-types');
 exports.resolveMimeType		= resolveMimeType;
 
 function resolveMimeType(query) {
-	return mimeTypes.extension(query) || mimeTypes.lookup(query) || undefined;	//	lookup() returns false; we want undefined
+	if(mimeTypes.extensions[query]) {
+		return query;	//	alreaed a mime-type
+	}
+	
+	return mimeTypes.lookup(query) || undefined;	//	lookup() returns false; we want undefined
 }