Wrong translation ids in german translation file

[weierophinney]

source: zendframework/zend-i18n-resources/languages/de/Zend_Validate.php

right: File has an incorrect mimetype of '%type%'
wrong: File has a false mimetype of '%type%'

right: The mimetype could not be detected from the file
wrong: The mimetype of file could not be detected

and some others

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Originally posted by @MB-Tec at zendframework/zend-i18n-resources#27

[froschdesign]

We must check the message identifiers for conflicts / BC breaks with older versions of laminas-validator.

[froschdesign]

Related to #4