KeyError: 'DisplayName' during GCP service account import

[shrikant-builds]

I see following errors in /var/log/securitymonkey.log for GCP iamserviceaccounts

2017-04-25 20:43:38,813 INFO: Started thread pool with 25 core threads and 30 maximum threads [in build/bdist.linux-x86_64/egg/apscheduler/threadpool.py:52]
Traceback (most recent call last):
File "/usr/local/src/security_monkey/venv/bin/monkey", line 11, in <module>
load_entry_point('security-monkey', 'console_scripts', 'monkey')()
File "/usr/local/src/security_monkey/security_monkey/manage.py", line 625, in main
manager.run()
File "/usr/local/src/security_monkey/venv/lib/python2.7/site-packages/Flask_Script-0.6.3-py2.7.egg/flask_script/init.py", line 397, in run
result = self.handle(sys.argv[0], sys.argv[1:])
File "/usr/local/src/security_monkey/venv/lib/python2.7/site-packages/Flask_Script-0.6.3-py2.7.egg/flask_script/init.py", line 376, in handle
return handle(app, positional_args, **kwargs)
File "/usr/local/src/security_monkey/venv/lib/python2.7/site-packages/Flask_Script-0.6.3-py2.7.egg/flask_script/commands.py", line 145, in handle
return self.run(args, kwargs)
File "/usr/local/src/security_monkey/security_monkey/manage.py", line 77, in find_changes
sm_find_changes(account_names, monitor_names)
File "/usr/local/src/security_monkey/security_monkey/scheduler.py", line 52, in find_changes
(items, exception_map) = cw.slurp()
File "/usr/local/src/security_monkey/security_monkey/watchers/gcp/iam/serviceaccount.py", line 84, in slurp
return slurp_items()
File "/usr/local/src/security_monkey/venv/lib/python2.7/site-packages/cloudaux-1.1.8-py2.7.egg/cloudaux/gcp/decorators.py", line 132, in decorated_function
itm, exc = func(*args, kwargs)
File "/usr/local/src/security_monkey/security_monkey/watchers/gcp/iam/serviceaccount.py", line 75, in slurp_items
name=sa['DisplayName'],
KeyError: 'DisplayName'

for serviceaccounts, 'displayName' field is optional, we need to use either 'email', or name (parse and extract)
https://cloud.google.com/iam/reference/rest/v1/projects.serviceAccounts#ServiceAccount

[shrikant-builds]

@supertom ^^ issue is the one we discussed on gitter

[scriptsrc]

Fixed in #701