Do not reload routes before application startup

[mamhoff]

This devise.rb initializer is run for most stores, and by setting reload_routes to false, we can avoid Devise reloading the routes in an initializer. Rails will do this just fine, but not in the initializer chain.

[tvdeyen]

@solidusio/core-team can I get a second review?

[kennyadsl]

Thanks Martin, what problem does this change solve exactly?

[mamhoff]

It stops every store from loading the routes twice during startup.

[kennyadsl]

And we have this problem on all extensions?

[mamhoff]

No, it's just this one, because it loads Devise, and that does the route reloading unless it's turned off. This was unearthed by the following issue in Solidus: solidusio/solidus#6038 - This user was running a store without solidus_auth_devise, thus didn't load the routes when Devise does, thus breaking solidus_admin. I think it's preferable for this extension to behave like any other authentication solution, and show us problems like this. (The actual error would be fixed by solidusio/solidus#6039).