Add support for Ohio (us-east-2)
Add support for Ohio (us-east-2)

I've added the new Ohio (us-east-2) zone and updated all AMIs to latest 16.04.1LTS (20161013).

> ap-northeast-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-31892c50	hvm
ap-southeast-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-18e7417b	hvm
eu-central-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-597c8236	hvm
eu-west-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-c593deb6	hvm
sa-east-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-909b06fc	hvm
us-east-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-fd6e3bea	hvm
us-west-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-73531b13	hvm
cn-north-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-d7c511ba	hvm
us-gov-west-1	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-8df24aec	hvm
ap-southeast-2	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-7be4d618	hvm
us-west-2	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-f1ca1091	hvm
us-east-2	xenial	16.04 LTS	amd64	hvm:ebs-ssd	20161013	ami-0a104a6f	hvm

Signed-off-by: jloisel <307df5fd2049f1e22f0e1cab23577bd1f9071189@gmail.com>

dgageot/machine,dweomer/docker-machine,londoncalling/machine,docker/machine,londoncalling/machine,SvenDowideit/machine,exoscale/docker-machine,SvenDowideit/machine,Herbis/machine,larsla/machine,larsla/machine,Herbis/machine,docker/machine,dgageot/machine,flavio/machine,dweomer/docker-machine,voutilad/machine,voutilad/machine,exoscale/docker-machine,flavio/machine,ibuildthecloud/machine,ibuildthecloud/machine