1. Performance optimizations

2. Added an option to save BPM values inside ID3 tags for MP3 files

1. New clear toolbar icons

2. Shortcut for Exit was changed from Esc to Alt+F4

3. Removed 3D border around content in fullscreen mode

1. Fixed bug with starting application from UNC path

2. Fixed bug with NTFS read-only partitions

Fixed: "Copy to clipboard" menu item was active even if you disable it.