autotest/autotest — pull request #738 by ruda (2013-09-09 21:30:23+00:00)
Title: Remove gnuplot from package dependence and improve the test for Ubuntu by looking for /etc/debian_release.

pkgdeps.py: Remove gnuplot from package dependence.
install-autotest-server.sh: Improve the test for Ubuntu (and Debian) by looking for /etc/debian_release file.