Log Message:
ncmpc: Update to 0.42

ncmpc 0.42 - (2020-10-28)
* file page: repaint after moving cursor with mouse
* file page: handle mouse click on directory
* library page: mouse support
* suppor the mouse wheel
* fix assertion failure on exit

ncmpc 0.41 - (2020-10-16)
* new main loop (copying code from MPD, replacing boost::asio)
* library page: fix crash bug
* lyrics: remove the "lyricwiki" plugin because the site is gone

ncmpc 0.40 - (2020-10-07)
* fix crash when range selection includes ".."
* fix another crash with a very narrow terminal window
* another jumping cursor fix for large scroll-offset values
* show elapsed time of streams