[TASK] Move code from system extension integrity to extension lowlevel

Project: TYPO3v4/Core
Branch: master
Patchset: 1
ID: I22020736e91d7d0079ecf47e9b7d30a758f98e4c
Author: Markus Klein

URL: http://review.typo3.org/14954

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For further information to this pull request please have a look at the original one: http://review.typo3.org/14954

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