Werk #1706: Fix file permissions when installing MKPs to 0644 or 0755

Component	Core & setup
Title	Fix file permissions when installing MKPs to 0644 or 0755
Date	Dec 5, 2014
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.2.6b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

When installing MKP packages that contain files with invalid permissions then fix these when installing the packages.

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