TODO + ChangeLog update

ChangeLog

 git - ?
 	- List the detected hard links in file info window
-	- Count the size a hard linked file once for each directory it appears in
+	- Count the size of a hard linked file once for each directory it appears in
 	- Fixed crash on browsing dirs with a small window size (#2991787)
 	- Fixed buffer overflow when some directories can't be scanned (#2981704)
+	- Fixed segfault when root dir only contains hidden files
 	- Improved browsing performance
 	- More intuitive multi-page browsing
 	- Various minor fixes

TODO

@@ -18,7 +18,7 @@ Small list of planned features/changes, suggestions are always welcome.
     having a special key for each column
 
 - Better handling of hard links?
-  * Link the files together in the browser interface
+  * Use hash table or BST to speed up hard link detection
   * Have a separate size variable for "shared" data
     (displayed in the browser as e.g. "291+3MiB")
     This should be both more intuitive and more correct than simply