- add a missing reference handler to handle the inheriting names that aren't in the docs
- add a missing reference handler to handle the inheriting names that aren't in the docs

davidjb/sqlalchemy,robin900/sqlalchemy,olemis/sqlalchemy,276361270/sqlalchemy,elelianghh/sqlalchemy,Akrog/sqlalchemy,bdupharm/sqlalchemy,bootandy/sqlalchemy,davidfraser/sqlalchemy,EvaSDK/sqlalchemy,alex/sqlalchemy,davidfraser/sqlalchemy,olemis/sqlalchemy,inspirehep/sqlalchemy,pdufour/sqlalchemy,itkovian/sqlalchemy,alex/sqlalchemy,Akrog/sqlalchemy,davidjb/sqlalchemy,dstufft/sqlalchemy,robin900/sqlalchemy,hsum/sqlalchemy,epa/sqlalchemy,wujuguang/sqlalchemy,sqlalchemy/sqlalchemy,wujuguang/sqlalchemy,elelianghh/sqlalchemy,EvaSDK/sqlalchemy,brianv0/sqlalchemy,pdufour/sqlalchemy,wfxiang08/sqlalchemy,epa/sqlalchemy,WinterNis/sqlalchemy,ThiefMaster/sqlalchemy,276361270/sqlalchemy,bdupharm/sqlalchemy,monetate/sqlalchemy,Cito/sqlalchemy,j5int/sqlalchemy,Cito/sqlalchemy,graingert/sqlalchemy,zzzeek/sqlalchemy,monetate/sqlalchemy,alex/sqlalchemy,halfcrazy/sqlalchemy,Cito/sqlalchemy,graingert/sqlalchemy,brianv0/sqlalchemy,j5int/sqlalchemy,ThiefMaster/sqlalchemy,hsum/sqlalchemy,sandan/sqlalchemy,bootandy/sqlalchemy,WinterNis/sqlalchemy,dstufft/sqlalchemy,inspirehep/sqlalchemy,halfcrazy/sqlalchemy,wfxiang08/sqlalchemy,sandan/sqlalchemy,itkovian/sqlalchemy