fixed date add and subtract functions for dynamic values
fixed date add and subtract functions for dynamic values

Ocramius/dbal,hason/dbal,zeroedin-bill/dbal,arima-ryunosuke/dbal,BenMorel/dbal,LionwareSolutions/dbal,nfrignani/dbal,mihai-stancu/dbal,vortgo/dbal,janschoenherr/dbal,easybiblabs/dbal,doctrine/dbal,lcobucci/dbal,mariuz/dbal,stof/dbal,sarcher/dbal,gencer/dbal,helicon-os/doctrine-dbal,kupishkis/dbal,DataSyntax/dbal,hason/dbal,sarcher/dbal,LionwareSolutions/dbal,bspeterson/dbal,LionwareSolutions/dbal,Ocramius/dbal,stchr/dbal,kimhemsoe/dbal,webonyx/dbal,arima-ryunosuke/dbal,DataSyntax/dbal,vutung2311/dbal,AlexDpy/dbal,PowerKiKi/dbal,gencer/dbal,DHager/dbal,Tobion/dbal,easybiblabs/dbal,webonyx/dbal,wuxu92/dbal,BenMorel/dbal,mbeccati/dbal,mathroc/dbal,stchr/dbal,easybiblabs/dbal,drieschel/dbal,mihai-stancu/doctrine-dbal,stof/dbal,zeroedin-bill/dbal,lcobucci/dbal,PowerKiKi/dbal,DHager/dbal,bspeterson/dbal,PureBilling/dbal,kimhemsoe/dbal,lafourchette/dbal,deeky666/dbal,mathroc/dbal,drieschel/dbal,janschoenherr/dbal,mariuz/dbal,nfrignani/dbal,mihai-stancu/dbal,mRoca/dbal,doctrine/dbal,mRoca/dbal,adrienbrault/dbal,hason/dbal,mikeSimonson/dbal,adrienbrault/dbal,shivergard/dbal,webonyx/dbal,kupishkis/dbal,mikeSimonson/dbal,sarcher/dbal,mariuz/dbal,vutung2311/dbal,tk-s/dbal,mihai-stancu/doctrine-dbal,kupishkis/dbal,mbeccati/dbal,vortgo/dbal,adrienbrault/dbal,shivergard/dbal,v-bartusevicius/dbal,deeky666/dbal,PowerKiKi/dbal,wuxu92/dbal,lafourchette/dbal,tk-s/dbal,arima-ryunosuke/dbal,helicon-os/doctrine-dbal,v-bartusevicius/dbal,Tobion/dbal,cassvail/dbal,cassvail/dbal,AlexDpy/dbal,PureBilling/dbal