maven build for 9.2
Merge branch 'REL9_2_STABLE' of github.com:pgjdbc/pgjdbc into REL9_2_STABLE
fixed tcpkeepalive as per Rui Zhu
pass stringtype on to url through properties from Mike O'Toole
initialize binaryTranferEnable to null
Merge branch 'REL9_2_STABLE' of github.com:davecramer/pgjdbc into REL9_2_STABLE
check for null before appending to url
Merge pull request #60 from davecramer/REL9_2_STABLE

backpatch BaseDataSource