Fix container issue in Lumen Module #3124
In Lumen module, initializeLumen() method has been called twice on that starts. (_initialize, _before)
I guess #2607 is same problem.
I will look into it, I still need to bring the structure of the Lumen module a bit more in line with the structure of the Laravel modules. Also, there were some significant breaking changes with the release of Lumen 5.2, so the module probably needs some work for that as well.
I am very busy right now, and I am also going away on holiday soon, so it will probably take a while before I can work on the Lumen module. For now I will merge this PR since it looks good and does not break any tests. I can rework it later if necessary.