Merge tag '1.2' into nightly

1.2
use single quotes to escape filenames instead of double quotes (ie avoid $ to be expanded)

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
escape single quotes in filenames

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
updated to new logger framework (logging + zlog formatting)

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
version bump to 1.3

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
Merge branch 'release/1.3'