- clean up unicode docs and clarify that client_encoding at the engine level is not the same thing as at the connect args level.
- clean up unicode docs and clarify that client_encoding
at the engine level is not the same thing as at the connect args
level.

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