zhurong 1c18762ba1 Add exception for communicate with glare api
Murano dashboard crashes if glare is down. It should
act similarly as the situations when murano-api is
down, show horizon's error message that it was
impossible to communicate with glare api.

Change-Id: I29687d45d4b6da6ef27bf09bee537efec3bacdeb
Closes-Bug: #1595494
2016-06-30 05:39:03 +00:00
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