renamed dim method parameters to dimen to avoid NMatrix#dim naming confusion; added explicit call-seq blocks to mapping/reduction methods
renamed dim method parameters to dimen to avoid NMatrix#dim naming confusion; added explicit call-seq blocks to mapping/reduction methods

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