Jeremy Stanley 6ec66bb3d1 Install prettytable>=0.7 to satisfy pip 6/PEP 440
Also use sudo -H with pip so that it doesn't create a ~stack/.cache
other things can't write to as the stack user later.

Change-Id: I2134c7d8f58f8b83f33150c9ed86d87f8ccba2f3
2014-12-23 01:05:42 +00:00
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