Resolve Gitlab variables in Docker image name

Attempt to solve issue #112 (closed)

Try to replace any variable placeholder in image name of the Docker Executor by the actual value.

Use case being to be able to run a build with a configuration version of it. Like, say:


One of the part I am not sure about is if the environment variables are resolved at that time (That all the overrides from the newest version of Gitlab are done)