It is possible that importing package will not import your package

[Alex Kholkin]

After merging this patch https://review.openstack.org/#/c/349452/ we found this problem.

Steps to reproduce:
1) Go to applications > manage > packages
2) Import package from a.o.o. (for example "BIND DNS server (package)")

Expected result:
package is imported

Actual result:
package is not imported

Reproducibility:
It reproduces not every time. If it will not be reproduced you should delete the package and import it again.

Part of the horizon log:

2016-08-03 09:58:12.506526 ERROR:muranodashboard.packages.views:Uploading package failed.
2016-08-03 09:58:12.506553 Traceback (most recent call last):
2016-08-03 09:58:12.506558 File "/opt/stack/murano-dashboard/muranodashboard/packages/views.py", line 510, in process_step
2016-08-03 09:58:12.506563 data, files)
2016-08-03 09:58:12.506567 File "/opt/stack/python-muranoclient/muranoclient/v1/artifact_packages.py", line 29, in inner
2016-08-03 09:58:12.506570 return func(*args, **kwargs)
2016-08-03 09:58:12.506574 File "/opt/stack/python-muranoclient/muranoclient/v1/artifact_packages.py", line 234, in create
2016-08-03 09:58:12.506578 pkg = self.glare.create(fqn, files[fqn], **data)
2016-08-03 09:58:12.506581 File "/opt/stack/python-muranoclient/muranoclient/v1/artifact_packages.py", line 58, in create
2016-08-03 09:58:12.506585 package.resolvers)
2016-08-03 09:58:12.506588 AttributeError: 'Package' object has no attribute 'resolvers'
2016-08-03 09:58:12.507010 Recoverable error: 'Package' object has no attribute 'resolvers'

[Victor Ryzhenkin (vryzhenkin)]

The dashboard wasn't restarted after the client fix. So, this error was appeared about dashboard using the cached client. The problem gone after dashboard was restarted.