Support single quotes in yaml
Support single quotes in yaml

Fixes backup broken in issue #373
Fixes: #378

Signed-off-by: Cormier, Jonathan <94278db6987355808b2e44bbe88db00b9ea77e5a@criticallink.com>

sameersbn/docker-redmine,otsuka512/docker-redmine,otsuka512/docker-redmine,otsuka512/docker-redmine,sameersbn/docker-redmine,sameersbn/docker-redmine