modified _readEsgfConfig() to work with ESGF 3.0 config file
modified _readEsgfConfig() to work with ESGF 3.0 config file

sashakames/COG,sashakames/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,sashakames/COG,sashakames/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG