squashed commit for dockerfiles part#2 including comments from PR#910This PR replace PR#910 which include fix from comments in PR#910.
This PR simplify download of systemvm templates, work with docker-compose and enable integration-api port and use of localstorage without reconfiguration of cloudstack.
Rebased on Oct28.
* pr/999:
squashed commit for dockerfiles part#2 including comments from PR#910
Signed-off-by: Remi Bergsma <github@remi.nl>