Correct dependency in quickstart.rst
Correct dependency in quickstart.rst

Correct pip dependencies for different branches.
Kolla newton and master is using ansible 2.0 now,
but the doc did not follow up.

Change-Id: I184a94b206a9a0484c4a02a3d36c60fc530c6fa4

stackforge/kolla,coolsvap/kolla,mrangana/kolla,nihilifer/kolla,stackforge/kolla,rahulunair/kolla,nihilifer/kolla,GalenMa/kolla,rahulunair/kolla,intel-onp/kolla,GalenMa/kolla,coolsvap/kolla,intel-onp/kolla,openstack/kolla,stackforge/kolla,mrangana/kolla,coolsvap/kolla,openstack/kolla