make Wrapper functions optional
make Wrapper functions optional

hanw/connectal,chenm001/connectal,8l/connectal,cambridgehackers/connectal,chenm001/connectal,8l/connectal,csail-csg/connectal,8l/connectal,8l/connectal,chenm001/connectal,csail-csg/connectal,csail-csg/connectal,hanw/connectal,hanw/connectal,cambridgehackers/connectal,8l/connectal,cambridgehackers/connectal,chenm001/connectal,hanw/connectal,chenm001/connectal,csail-csg/connectal,csail-csg/connectal,cambridgehackers/connectal,cambridgehackers/connectal,hanw/connectal