Bump version to 0.19.

setup.py

@@ -18,7 +18,7 @@ if sys.version_info[0] == 2:
     requires.append('scapy')
 
 setup(name='router-services',
-      version='0.17',
+      version='0.19',
       description='Uninett nova router',
       classifiers=[
           "Programming Language :: Python",