Various code cleanups and method extractions.

Jean-Noel Rouvignac

23.30.2013 cdeb81d4b045633f5daabcbffa6912ab424964d2

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user-friendly-name=Pol\u00edtica de retenci\u00f3 de registres
user-friendly-plural-name=Pol\u00edtiques de retenci\u00f3 de registres