Werk #3538: Now hiding the activate changes button as long as another activation process is running

Component	Setup
Title	Now hiding the activate changes button as long as another activation process is running
Date	May 24, 2016
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

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