Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Add localEqual, but had to use a different operator.

The three equals (===) conflicts with the ScalaTest ===.
I made it ==== for now. I'm not sure how to resolve this.
Add localUnequal.
Add localGreater.
Fix a bug with right associative localGreater.
Add localLess.
Add missing test to GreaterSpec.
Add localGreaterOrEqual.
Add localLessOrEqual.
Add localAbs.
Add localSinh.
Add localSin.
Add localCos.