copied plex-home-theater to openpht
PKGBUILD - Remove opt dep pulseaudio
PKGBUILD - Added plex_lib.conf, this file goes in /etc/gen_lib_xml.d/
PKGBUILD - Install plexhometheater.sh to /usr/LH/bin
openpht.install - add gen_lib_xml.py to post_install and post_remove and post_update