- create a new section on "custom load rules", to help with edge cases like that of #3277.  fixes #3277
- create a new section on "custom load rules", to help with edge
cases like that of #3277.  fixes #3277

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