to address issues with NetBSD-6(and earlier)'s fontconfig not being
new enough for pango.
While doing that, also bump freetype2 dependency to current pkgsrc
version.
Suggested by tron in PR 47882
(change from wip package: install README)
LXSession is the default session manager of LXDE. It is used to
start and setup the desktop environment. It can optionally restart
crashed programs. It includes a built-in lightweight Xsettings
daemon which can configure gtk+ themes, keyboard, and mouse. It
also provides a logout program.