- fix typo MANYTOONE -> MANYTOMANY, fixes #3415
- fix typo MANYTOONE -> MANYTOMANY, fixes #3415

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