Fix to na.rm in decostand methods alr/clr

NAMESPACE

@@ -17,6 +17,7 @@ metaMDSdist, metaMDSiter, metaMDSredist, MDSaddpoints, MDSrotate, metaMDS,
 monoMDS, mrpp, msoplot, mso, multipart, make.commsim, nestedbetajac,
 nestedbetasor, nestedchecker,
 nesteddisc, nestedn0, nestednodf, nestedtemp, nullmodel, oecosimu, smbind,
+OptSpace,
 ordiareatest, ordiR2step,
 ordiarrows, ordiArrowMul, ordiArrowTextXY, ordibar, ordicloud,
 ordicluster, ordiellipse, ordigrid,