Log Message:
x11/lxqt-session: update to 0.15.0

lxqt-session-0.15.0 / 2020-04-22
================================
  * Bumped version to 0.15.0.
  * C++11 code updates.
  * Removed redundant variable SAL_USE_VCLPLUGIN from startlxqt.
  * Fixed lxqt-session memory leak (triggered by wine and specific games).
  * Remove deprecated QDesktopWidget.
  * Corrected dialog location with muti-screen setups.