Changelog
- fixing playlist recovery message presentation
- fixed foreign playlist management
- fixed exiting when playlist is modified
- when applying a theme which is not supported, using "light"
if "light" or "light_16_colors" is default - fixing update notification message "Will check again in 0 days"
- update notification will clean files in all cases
- adding "M" to config station selection
- updating help for playlist and config station selection
- heavy refactoring; using window stack and redisplay list