ContentRelatedItems was deprecated in Plone 4.0.10 and removed aprox. in 4.2
Use the method defined the related content viewlet.
Merge pull request #19 from 4teamwork/mle-do-not-use-ContentRelatedItems

ContentRelatedItems was deprecated in Plone 4.0.10 and removed aprox. in 4.2 Use the method defined the related content viewlet.