added docs for send/recv buffer size
added docs for send/recv buffer size

golovnin/pgjdbc,rjmac/pgjdbc,pgjdbc/pgjdbc,pgjdbc/pgjdbc,jamesthomp/pgjdbc,jamesthomp/pgjdbc,zemian/pgjdbc,whitingjr/pgjdbc,AlexElin/pgjdbc,lordnelson/pgjdbc,schlosna/pgjdbc,jorsol/pgjdbc,bocap/pgjdbc,alexismeneses/pgjdbc,zemian/pgjdbc,Gordiychuk/pgjdbc,pgjdbc/pgjdbc,jorsol/pgjdbc,marschall/pgjdbc,marschall/pgjdbc,bocap/pgjdbc,phillipross/pgjdbc,ekoontz/pgjdbc,sehrope/pgjdbc,lonnyj/pgjdbc,amozhenin/pgjdbc,bocap/pgjdbc,lordnelson/pgjdbc,amozhenin/pgjdbc,jkutner/pgjdbc,lordnelson/pgjdbc,sehrope/pgjdbc,rjmac/pgjdbc,golovnin/pgjdbc,Gordiychuk/pgjdbc,davecramer/pgjdbc,zapov/pgjdbc,phillipross/pgjdbc,alexismeneses/pgjdbc,jkutner/pgjdbc,phillipross/pgjdbc,jorsol/pgjdbc,schlosna/pgjdbc,whitingjr/pgjdbc,pgjdbc/pgjdbc,jorsol/pgjdbc,marschall/pgjdbc,panchenko/pgjdbc,lonnyj/pgjdbc,AlexElin/pgjdbc,davecramer/pgjdbc,Gordiychuk/pgjdbc,amozhenin/pgjdbc,panchenko/pgjdbc,davecramer/pgjdbc,jamesthomp/pgjdbc,underyx/pgjdbc,zapov/pgjdbc,golovnin/pgjdbc,panchenko/pgjdbc,davecramer/pgjdbc,zemian/pgjdbc,ekoontz/pgjdbc,underyx/pgjdbc,rjmac/pgjdbc,marschall/pgjdbc,jkutner/pgjdbc,sehrope/pgjdbc,AlexElin/pgjdbc,whitingjr/pgjdbc,sehrope/pgjdbc,zapov/pgjdbc,underyx/pgjdbc