Disable autocommit in example

This makes our .commit calls work again.

Fixes #47
Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>
diff --git a/example/example.py b/example/example.py
index 7390c90..9eda765 100755
--- a/example/example.py
+++ b/example/example.py
@@ -34,7 +34,7 @@
 
 # setup sqlalchemy
 engine = create_engine(app.config['DATABASE_URI'])
-db_session = scoped_session(sessionmaker(autocommit=True,
+db_session = scoped_session(sessionmaker(autocommit=False,
                                          autoflush=True,
                                          bind=engine))
 Base = declarative_base()