fix #78: update bbmarkup
fix #78: update bbmarkup

slav0nic/DjangoBB,LLK/s2forums,tjvr/s2forums,tjvr/s2forums,rashoodkhan/DjangoBB,rashoodkhan/DjangoBB,hsoft/DjangoBB,hsoft/slimbb,LLK/s2forums,agepoly/DjangoBB,saifrahmed/DjangoBB,agepoly/DjangoBB,slav0nic/DjangoBB,agepoly/DjangoBB,hsoft/slimbb,saifrahmed/DjangoBB,hsoft/DjangoBB,tjvr/s2forums,slav0nic/DjangoBB,hsoft/slimbb,LLK/s2forums,saifrahmed/DjangoBB,hsoft/DjangoBB