tests/test_debs.sh: verify that autoconfig.functions can be read, otherwise fail If autoconfig.functions can't be parsed (e.g. because of syntax errors) then the test suite returns with exit code 0.
Install all packages in debs directory if debs boot parameter is specified
tests/test_debs.sh: provide einfo/eend wrapper for non-existing grml-etc-core files /etc/grml/lsb-functions and /etc/grml_colors.
Added test for the config_debs function to test the parameter count for the dpkg command.