add env vars for amazonec2 driver

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
Merge pull request #110 from ehazlett/ec2-env-vars

add env vars for amazonec2 driver
used ubuntu-14-04-x64 for DO

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
use standard ubuntu 14.04 amd64 ami for ec2

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
refactored docker install for ec2 and DO; both using standard ubuntu 14.04 amd64

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
refactor azure provider to use ubuntu

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
hide install output unless debug

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
use driver for installdocker

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
refs #124: using cloud-init for install; WIP: DO not working

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
add wait for docker provisioning

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
clarify waitfordocker

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
remove debug

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>