ACLs can now be defined by subdomain AND resource using pattern matching
with regular expressions.
It allows a very fine-grained access control to backend resources.
[Note] For using example environmnent, user must update its /etc/hosts with
new subdomains updated in README.
Before this fix, the application was simply crashing during execution
when connection to redis was failing.
Now, it is correctly handled with failing promises and logs have been
enabled to clearly see the problem
