Revert "Migrate CI to container-based infrastructure"
Revert "Migrate CI to container-based infrastructure"

This reverts commit bd164b27b36535299145ee045c8466a81fa01200.

Apparently the mongo service is started with a sudo, which is
not supported by the Travis-docker intrastructure. Took me a while
to realize that.

pjs7678/eve,julianhille/eve,mcreenan/eve,eduardomb/eve,elpoisterio/eve,EasonYi/eve,stratosgear/eve,hustlzp/eve,mugurrus/eve,bcrochet/eve,yanyanqin/eve,kalbasit/eve