Add Support for Openstack Iaas

[poblin-orange]

added openstack nova jclouds libs and properties to support Openstack Iaas.

[poblin-orange]

@nbahe thks for integration / fix of our pull request

[nebhale]

@poblin-orange I don't have an OpenStack installation to test this on. I think that the documented properties should work with the current design. Would it be possible for you to verify this?

[poblin-orange]

@nebhale just did a quick test
Here is the cf-env results

User-Provided:
BLACKLIST: postgres
DEFAULT_PROBABILITY: 0.1
DIRECTOR_HOST: xx.yy.zz.xx
DIRECTOR_PASSWORD: wwwwwww
DIRECTOR_USERNAME: chaos
DRY_RUN: false
JAVA_OPTS: -Djava.security.egd=file:///dev/urandom
OPENSTACK_ENDPOINT: https://xxxx/v2.0
OPENSTACK_PASSWORD: zzzzzzzzzzzz
OPENSTACK_TENANT: Tenant
OPENSTACK_USERNAME: xx@uu.com
SCHEDULE: 0 0/15 * * * *
SECURITY_USER_NAME: chaos
SECURITY_USER_PASSWORD: zzzzz
WHITELIST: worker

ok, match the documented props

[nebhale]

Thanks for checking it out.