zulip setup.py: Remove redundant directory forward slash.
The slash caused pip install ./zulip to fail on Windows with
Python 3.5.
@@ -55,7 +55,7 @@ package_info = dict(
"examples/send-message",
"examples/subscribe",
"examples/unsubscribe",
- ])] + list(recur_expand('share/zulip', 'integrations/')),
+ ])] + list(recur_expand('share/zulip', 'integrations')),
entry_points={
'console_scripts': [
'zulip-send=zulip.send:main',
