Ensure spring is disabled while installing new project.
Ensure spring is disabled while installing new project.

Also removes the `--quiet` flag from the rails installer,
in order to see what's happening.

chalmagean/alchemy_cms,mtomov/alchemy_cms,nielspetersen/alchemy_cms,heisam/alchemy_cms,nielspetersen/alchemy_cms,heisam/alchemy_cms,getkiwicom/alchemy_cms,AlchemyCMS/alchemy_cms,nielspetersen/alchemy_cms,clst/alchemy_cms,mtomov/alchemy_cms,mtomov/alchemy_cms,jsqu99/alchemy_cms,IngoAlbers/alchemy_cms,mixandgo/alchemy_cms,IngoAlbers/alchemy_cms,nielspetersen/alchemy_cms,kinsomicrote/alchemy_cms,akra/alchemy_cms,akra/alchemy_cms,akra/alchemy_cms,IngoAlbers/alchemy_cms,kinsomicrote/alchemy_cms,heisam/alchemy_cms,mamhoff/alchemy_cms,kinsomicrote/alchemy_cms,getkiwicom/alchemy_cms,akra/alchemy_cms,mamhoff/alchemy_cms,mtomov/alchemy_cms,jsqu99/alchemy_cms,getkiwicom/alchemy_cms,robinboening/alchemy_cms,robinboening/alchemy_cms,mixandgo/alchemy_cms,jsqu99/alchemy_cms,chalmagean/alchemy_cms,jsqu99/alchemy_cms,robinboening/alchemy_cms,mamhoff/alchemy_cms,mixandgo/alchemy_cms,IngoAlbers/alchemy_cms,AlchemyCMS/alchemy_cms,chalmagean/alchemy_cms,clst/alchemy_cms,clst/alchemy_cms,getkiwicom/alchemy_cms,mixandgo/alchemy_cms,chalmagean/alchemy_cms,clst/alchemy_cms,AlchemyCMS/alchemy_cms,kinsomicrote/alchemy_cms,heisam/alchemy_cms