Replaced #== methods to #eql? for comparison matrices in tests.
Replaced #== methods to #eql? for comparison matrices in tests.

thisMagpie/nmatrix,thisMagpie/nmatrix,janusnic/nmatrix,wlevine/nmatrix,janusnic/nmatrix,johnmarinelli/nmatrix,agisga/nmatrix,johnmarinelli/nmatrix,agisga/nmatrix,thisMagpie/nmatrix,wlevine/nmatrix,agisga/nmatrix,wlevine/nmatrix,thisMagpie/nmatrix,agisga/nmatrix,wlevine/nmatrix,janusnic/nmatrix,johnmarinelli/nmatrix,johnmarinelli/nmatrix,janusnic/nmatrix