Merged Counter/Capture modes with latest DueTimer#1

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outlandnish wants to merge 10 commits intosyfre:masterfrom

outlandnish:master

Commits on Sep 6, 2014

Add ==, != operators
ecdr
committed

Commits on Oct 5, 2016

Commits on Apr 6, 2017

reworked patch to meet ivanseidel suggestions
ppescher
committed

Commits on Apr 30, 2018