Updated openstack/openstack
Project: openstack/sahara  d8381ed76ecc61ca1077a53908a620aca6af2201

Add checks in fake plugin

Remote checks:
* execute_command
* write_file_to
* read_file_from
* replace_remote_string

partially implements bp: fake-test-plugin

Change-Id: I57fa22478443cc73a8eaa8c2c51ecbfd80cf5ec1