Add documentation regarding transactional exceptions
Add documentation regarding transactional exceptions

lcobucci/dbal,lcobucci/dbal,doctrine/dbal,gencer/dbal,stof/dbal,drieschel/dbal,deeky666/dbal,drieschel/dbal,vutung2311/dbal,BenMorel/dbal,gencer/dbal,doctrine/dbal,deeky666/dbal,mikeSimonson/dbal,Tobion/dbal,mikeSimonson/dbal,Tobion/dbal,kimhemsoe/dbal,vutung2311/dbal,stof/dbal,kimhemsoe/dbal,BenMorel/dbal