fix issue #8

[iambocai]

[root@host bin]# dirname control.sh
.
[root@host bin]# dirname .
. <<----------------- T-T
[root@host bin]# HOMEDIR=$(cd $(dirname control.sh)/../ && pwd)
[root@host bin]# echo $HOMEDIR
/opt/cronicle <<----------------- : )

[jhuckaby]

Thank you for this PR. I actually went with an alternate fix, which is to properly calculate the full absolute path of the control script, so then dirname works properly. Example:

SCRIPT=`perl -MCwd -le 'print Cwd::abs_path(shift)' "$0"`
DIR=`dirname $SCRIPT`
HOMEDIR=`dirname $DIR`
cd $HOMEDIR

Yes this requires Perl, alas, but that is typically installed on most Linux systems by default.