Stopwatch and PrintCounter improvements#3813

Merged

thinkyhead merged 1 commit intoMarlinFirmware:RCBugFixfrom jbrazio:bugfix/3809

May 22, 2016

+64-43

Commits on May 22, 2016

Fixes MarlinFirmware#3809 and adds several improvements to the Stopwatch and
jbrazio
committed