Use home page by default

[gazayas]

Continuation of #1108.

There were no issues with tests thankfully due to #990 and #1007.
Only one problem where I had to make sure the Signed out successfully flash notice showed up properly.

[jagthedrummer]

I'm thinking we should do a larger version bump on this one since it'll change the behavior of apps if people don't notice the change and undo it for themselves.

[jagthedrummer]

Or... maybe it should be a config option that lives as turned off in the starter repo but that we turn on via bin/setup? I thought we were doing that for some config option or another but I'm not finding it right off the bat.

[gazayas]

I thought we were doing that for some config option or another but I'm not finding it right off the bat.

Yeah, I don't THINK we have a config in place, but I'm impartial as to having one or not. I know there are developers who have their marketing site somewhere else, so I can whip up an implementation in bin/configure if that's ideal. Otherwise it's currently not clear that developers can edit this setting manually when setting up a new app.