Add formatting to scheduling activity diagram
Add formatting to scheduling activity diagram

Add explicit box sizes to ensure all text is visible in the cells of the
activity diagram SVG in the Scheduling doc.

Change-Id: Ife4d72cbd2b877e948ac4aa4fe2fa3efc1e69e9d

phenoxim/nova,mikalstill/nova,openstack/nova,mikalstill/nova,klmitch/nova,klmitch/nova,mahak/nova,openstack/nova,klmitch/nova,mahak/nova,phenoxim/nova,rahulunair/nova,gooddata/openstack-nova,rahulunair/nova,rahulunair/nova,mikalstill/nova,gooddata/openstack-nova,openstack/nova,klmitch/nova,gooddata/openstack-nova,gooddata/openstack-nova,mahak/nova