fix client_encoding setting to support pgbouncer
fix client_encoding setting to support pgbouncer

nfrignani/dbal,zeroedin-bill/dbal,BenMorel/dbal,deeky666/dbal,mRoca/dbal,mbeccati/dbal,janschoenherr/dbal,bspeterson/dbal,doctrine/dbal,v-bartusevicius/dbal,AlexDpy/dbal,shivergard/dbal,mihai-stancu/doctrine-dbal,kimhemsoe/dbal,mihai-stancu/dbal,BenMorel/dbal,stof/dbal,Tobion/dbal,mihai-stancu/dbal,helicon-os/doctrine-dbal,mathroc/dbal,gencer/dbal,stchr/dbal,shivergard/dbal,AlexDpy/dbal,mRoca/dbal,kimhemsoe/dbal,vutung2311/dbal,lcobucci/dbal,tk-s/dbal,vutung2311/dbal,helicon-os/doctrine-dbal,tk-s/dbal,lafourchette/dbal,drieschel/dbal,lcobucci/dbal,Tobion/dbal,vortgo/dbal,stchr/dbal,doctrine/dbal,lafourchette/dbal,DHager/dbal,nfrignani/dbal,mikeSimonson/dbal,mbeccati/dbal,v-bartusevicius/dbal,wuxu92/dbal,mathroc/dbal,zeroedin-bill/dbal,DHager/dbal,deeky666/dbal,janschoenherr/dbal,drieschel/dbal,stof/dbal,vortgo/dbal,bspeterson/dbal,mihai-stancu/doctrine-dbal,mikeSimonson/dbal,wuxu92/dbal,gencer/dbal