Fixed ImportErrors / package structure

docker/auth/__init__.py

@@ -1,5 +1,3 @@
-
-
 from .auth import (
     INDEX_URL,
     encode_header,

docker/utils/__init__.py

@@ -1 +1 @@
-from .utils import mkbuildcontext, tar, compare_version  # flake8: noqa
+from .utils import compare_version, mkbuildcontext, ping, tar  # flake8: noqa

setup.py

@@ -13,7 +13,7 @@ setup(
     name="docker-py",
     version='0.2.1',
     description="Python client for Docker.",
-    packages=['docker'],
+    packages=['docker', 'docker.auth', 'docker.unixconn', 'docker.utils'],
     install_requires=requirements + test_requirements,
     zip_safe=False,
     test_suite='tests',