added new alsaconfigure.sh script which will be called via an acpi event if the headphone jack is used or via udev in case an external USB speaker is plugged/unplugged.
implemented pulseaudio support. Now a pulseaudio daemon will be automatically started in the hzdr package startup script. also recompiled freerdp to support pulseaudio. This should generally improve sound support and reduces lagging of audio vs. video playback.