complete the adding of docker_conn_timeout configuration option making timeout configurable, default is 60 seconds
complete the adding of docker_conn_timeout configuration option making timeout configurable, default is 60 seconds

Signed-off-by: Daniel Nurmi <fdebf2174dd81b443340a1b87c16a0d53605a1f3@anchore.com>

anchore/anchore,anchore/anchore