pbr>=0.6,!=0.7,<1.0
Babel>=1.3

Babel>=1.3
iso8601>=0.1.9
oslo.config>=1.4.0
pbr>=0.6,!=0.7,<1.0

Upgrade oslo.config version to 1.4.0
Upgrade oslo.config version to 1.4.0

gate-solum-infra-guestagent-requirements was failing because
we were using oslo.config>=1.2.1

Change-Id: I59dae34a3d4d44ac9047a803a536ecf933246b85
