Merge pull request #1 from fcrozat/master

allow to give systemctl some options using SYSTEMCTL_OPTION variable
Also source environment for tcsh and bash if sudo is used

Signed-off-by: Werner Fink <werner@suse.de>
Let the bash check the winsize only if COLUMNS is in the environment

Signed-off-by: Werner Fink <werner@suse.de>
call systemctl to enable/disable services (bnc#798510)
remove check whether systemd is running

we always need to call systemctl to enable/disable service files
Revert "rc.status: allow to pass options to systemctl using SYSTEMCTL_OPTIONS"

SYSTEMCTL_OPTIONS is now handled directly by systemctl.