Werk #3701: FIX ps.perf graph title for Memory and CPU Usage

Component	Checks & agents
Title	FIX ps.perf graph title for Memory and CPU Usage
Date	Sep 15, 2016
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Fixed graph titles to show "Usage for all processes".

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