hit KeyError exceptions

[Sebastien Bacher]

The p.p.c crontab has some emails about

~/unify/olddesignify/bin/designify

Traceback (most recent call last):
  File "/home/platform/unify/olddesignify/bin/designify", line 78, in <module>
    ready_to_develop_downstream, ready_to_land_downstream, ready_to_review, invalid_bugs) = get_bug_mastered_track_reports(design_task, db)
  File "/home/platform/unify/olddesignify/unify/bugshandler.py", line 441, in get_bug_mastered_track_reports
    project = launchpad.projects[master_task]
  File "/usr/lib/python2.7/dist-packages/lazr/restfulclient/resource.py", line 950, in __getitem__
    raise KeyError(key)
KeyError: u'ayatana-design'

the same error seems to happen sometime on u'ubuntu-ux'