Update thread safety status of the driver to reflect reality; that being that the driver is not thread safe (#928)
Update thread safety status of the driver to reflect reality; that being that the driver is not thread safe (#928)


davecramer/pgjdbc,jorsol/pgjdbc,sehrope/pgjdbc,jkutner/pgjdbc,AlexElin/pgjdbc,jorsol/pgjdbc,AlexElin/pgjdbc,pgjdbc/pgjdbc,davecramer/pgjdbc,zemian/pgjdbc,marschall/pgjdbc,whitingjr/pgjdbc,jorsol/pgjdbc,zemian/pgjdbc,sehrope/pgjdbc,zapov/pgjdbc,davecramer/pgjdbc,AlexElin/pgjdbc,sehrope/pgjdbc,marschall/pgjdbc,whitingjr/pgjdbc,sehrope/pgjdbc,pgjdbc/pgjdbc,marschall/pgjdbc,pgjdbc/pgjdbc,lordnelson/pgjdbc,davecramer/pgjdbc,golovnin/pgjdbc,golovnin/pgjdbc,golovnin/pgjdbc,zemian/pgjdbc,pgjdbc/pgjdbc,jkutner/pgjdbc,lordnelson/pgjdbc,whitingjr/pgjdbc,marschall/pgjdbc,jorsol/pgjdbc,jkutner/pgjdbc,zapov/pgjdbc,lordnelson/pgjdbc,zapov/pgjdbc