0.12.6dev: Align `docutils` version requirement with constraint introduced in [3509]. Refs #11694. 
0.12.6dev: Align `docutils` version requirement with constraint introduced in [3509]. Refs #11694. 


git-svn-id: 764b04d0c6fbbea0ee05220aef3208173ff13049@13081 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac