Merge remote-tracking branch 'upstream/master'
Changing kline.equal() to strict collinearity check.
Merge remote-tracking branch 'upstream/master' into kline_equal_optimize
modifying to apply proposed changes as per code review re: #161350
Merge remote-tracking branch 'upstream/master' into kline_equal_optimize
Merge pull request #161350 from pjmattingly/kline_equal_optimize

Changing kline.equal() to strict collinearity check.