add openbox-rc.xml and openbox-menu.xml
add wmgr-start
openbox menu - Remap alt-space to show root-menu
makefile update install and add uninstall target
xterms - fix $medir discovery

Instead of adding ~/wmgr to $PATH, we run directly from a symlink in
~/bin.
xterms - add SHORT_TERM_NAME export
xterms - change output of "xterms -l" include screen -ls listing
xterms - handle 'stop' action, and include 'repos' (WIP)
dtree - use /proc/$pid/cwd for getting shell's PWD
add mermaid to xterms.conf.pl.sample