Adding host as a configurable variable

[MillsyBot]

I would like to run this container in host mode bypassing the docker bridge. This PR will add 2 new variables HTTP_HOST and HTTPS_HOST to the Dockerfile so that the user can modify the bind statements and allow for this. I added a rudimentary test to the existing suite to ensure the bind was happening properly.

Great work, this is an awesome container.

[mendhak]

Hi thanks for the PR, could you have a look at the tests, they don't seem to be passing for me. I tried running ./tests.sh locally but it fails at the different hostnames test. I sometimes see "Different hostnames test failed."

I also tried adding --network host to the arguments list but same error