Made untitledCount begin at '' each time

src/app.js

@@ -316,6 +316,7 @@ var run = function() {
 	var FILE_SCROLL_DELTA = 300;
 
 	$('.newFile').on('click', function() {
+		untitledCount = '';
 		while (window.localStorage[SOL_CACHE_UNTITLED + untitledCount])
 			untitledCount = (untitledCount - 0) + 1;
 		SOL_CACHE_FILE = SOL_CACHE_UNTITLED + untitledCount;