Fix bug in `utl-switch-to-buffer-or-funcall'

The function switched to previous buffer instead of calling a function
FUN if there was no buffer BUFFER.
Delete functions for scrolling by 1 line
Add message to `utl-apply'
Fix typo

";;" instead of ";;;" is a big mistake.
Add possibility of creating org links for EMMS
Update function for opening EMMS org link

If a link with currently played file, just seek to time without
reloading the file.