Dan Prince 407a4a623f Add connection timeout to glance client.
Adds a timeout option to glance client and bin/glance.
Includes fast running test case to verify the timeout works correctly.

Fixes LP Bug #1002907.

Change-Id: I4a0c4a8ef1862346ec2cd068d9d9e0577cba9b68
2012-05-22 11:57:01 -04:00
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