sound_play won't work for Ubuntu 12.04 unless played as root or logged in user (ros ticket #22)

[ahendrix]

If a user is logged in, then only that user and sometimes root can play audio. For sound_play on robots, sometimes we have a GUI user that logs in, but other users or scripts play noises from the background.

I tested this on Ubuntu 12.04 64 bit with Fuerte.

trac data:

• Owner: ahendrix
• Reporter: chadrockey
• Reported at: Tue Dec 18 12:41:53 2012
• URL: https://kforge.ros.org/audiocommon/trac//ticket/22

[furushchev]

duplicated? #26