Translated to dutch

Change-Id: I5f26feb303f209de83b71ca80a11052ed8e5c316
Merge branch 'translation/761' into develop
Close #761

* translation/761:
  Translated to dutch
Merge branch 'translation/nl/modules/zend.config.theory-of-operation.rst' of https://github.com/jvandemo/zf2-documentation into translation/762

* 'translation/nl/modules/zend.config.theory-of-operation.rst' of https://github.com/jvandemo/zf2-documentation:
  Translated to dutch
Corrected typo re https://github.com/zendframework/zf2-documentation/pull/762#discussion_r3405212
Merge branch 'translation/762'
Close #762

* translation/762:
  Corrected typo re https://github.com/zendframework/zf2-documentation/pull/762#discussion_r3405212
  Translated to dutch
Merge branch 'master' of https://github.com/zendframework/zf2-documentation

* 'master' of https://github.com/zendframework/zf2-documentation:
  added return type
  fixed badly grammer
  add missing public methods
  fix typo and fix indentation