fix setup.py issue

In one of the case, when pegleg is installed as python package, pegleg
is having issue in importing dependency packages. This ps is used for
finding dependency packages automatically.

Change-Id: Iaf3fb0f344e1902af41bcbf0e05e2a43a32836a8

src/bin/pegleg/setup.py

@@ -13,11 +13,12 @@
 # limitations under the License.
 
 from setuptools import setup
+from setuptools import find_packages
 
 setup(
     name='pegleg',
     version='0.1.0',
-    packages=['pegleg', 'tests'],
+    packages=find_packages(),
     entry_points={
         'console_scripts': [
             'pegleg=pegleg.cli:main',