git-annex-5.20141024: doc/bugs/new_AWS_region___40__eu-central-1__41__.mdwn

### Please describe the problem.

Amazon has opened up a new region in AWS with a datacenter in Frankfurt/Germany.

* Region Name: EU (Frankfurt) region
* Region: eu-central-1

This should be added to the "Adding an Amazon S3 repository" page in the Datacenter dropdown of the webapp.