Bumped package version to v0.5.1 for release

Author: Dustin Whittle

setup.py

@@ -12,7 +12,7 @@
 
 setup(
     name='uber_rides',
-    version='0.5.0',
+    version='0.5.1',
     packages=find_packages(),
     description='Official Uber Rides API Python SDK',
     long_description=readme,