v3.0.0-beta.15 -Playlist locks

There may be a SMP's bug on installation. See _TIPS and INSTALLATION.txt
PREVIOUS BUTTONS CONFIG (<3.0.0) WILL BE LOST ON UPGRADE DUE TO A CHANGE ON PROPERTIES
REQUIRES SMP 1.6.1.

• New menu entries at Playlist manipulation to lock/unlock playlists. Currently switches 'add, remove, replace and reorder' locks (all at once). Use Playlist-Manager-SMP for a fine-grained control of lock types. Note playlist locked by other components or main program can not be edited via SMP.
• Minor improvements to word lists within popups in some instances. Now split in new lines after X elements.

See changelog for a full list: https://github.com/regorxxx/Playlist-Tools-SMP/blob/main/CHANGELOG.md