Pip now uses 'master' instead of develop.
Pip now uses 'master' instead of develop.

Change-Id: Ib316454655c5c322275b8dd5c7d18633cb5d336e

dongwenjuan/project-config,Tesora/tesora-project-config,dongwenjuan/project-config,Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config