Werk #1927: Fixed level description in WATO rules, change from if above into at

Component	Setup
Title	Fixed level description in WATO rules, change from if above into at
Date	Jan 30, 2015
Level	Prominent Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.2.7i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

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