MongoTemplate should consistently use getCollectionName(Class) [DATAMONGO-2296]

[spring-projects-issues]

Christoph Strobl opened DATAMONGO-2296 and commented

Currently there's a mixture of direct call to EntityOperations#getCollectionName() and the method exposed by the template itself.
This prevents customization of the template

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Referenced from: pull request #768

Backported to: 2.1.10 (Lovelace SR10)