added public-friendly setattr_clean and append_clean
added public-friendly setattr_clean and append_clean

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