Upgrade app EB solution stacks to v2.0.1
Upgrade app EB solution stacks to v2.0.1

Smoke tests running on the hour are failing with 504 errors. This
turned out to be an issue in the current EB Apache log rotation:

> The root cause of this is that EB rotates the logs once an hour
> BUT when rotating the logs, they do a "reload" on apache rather
> than a 'graceful'. This causes connections to be dropped.

and should be fixed in the newer (v1.4.6 and later) stack versions.

(https://forums.aws.amazon.com/thread.jspa?messageID=625900)

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