Update to 6.01
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  Changes in Devel::NYTProf 6.01 - 4th April 2015
      Changed the clock used on Windows to high resolution QueryPerformanceCounter
        which makes NYTProf useful on windows, at last, thanks to bulk88, #68

      Fallback to checking PATH for nytprof scripts, #61 thanks to calid
      Fix unused variable warnings thanks to zefram, RT#103107
      Fix handling of PERL_DISABLE_PMC, thanks to bulk88, #67

      Use larger buffer size when writing the data file, thanks to bulk88 #69

      Clarified the docs re DB:: functions, #63 thanks to dbooth-boston
      Documentation cleanup thanks to wollmers, #64
      Clarify reason for loading Devel::NYTProf as early as possible.
      Clarification of the RUN-TIME CONTROL OF PROFILING docs

(mef)