New features:
- Line number in filtered view
- Matches overview (right bar)
- Bookmarks
- Multi files
- Improved savable search text
- Save position with latest files (not just the last one)
- Non modal filter dialog
- On/off search item window
- Drag 'n drop in filters

Fixes:
- Error in regexp
- Yellow background for errors/file changed
- Keep colours (partially) of selected text
- Greater number of latest files
- Long file name makes the status bar extend

Perf:
- Search slows down when there is a large number of matches