http get method in esgf browser, probably need to be replaced with proper wget script

[doutriaux1]

e) After entering a name in the save dialog and clicking "save" the file download executed. The progress bar hung at 96% and at 98% for a second download. Although there is no indication that the download completed the files appeared to have downloaded correctly.

The following exceptions were generated during the course of this test:

File "/Developer/Projects/EclipseWorkspace/vistrails/vistrails/gui/uvcdat/variable.py", line 311, in setRoi
self.updateAxesFromRoi()
File "/Developer/Projects/EclipseWorkspace/vistrails/vistrails/gui/uvcdat/variable.py", line 316, in updateAxesFromRoi
n = self.axisListHolder.gridLayout.rowCount()
AttributeError: 'NoneType' object has no attribute 'gridLayout'

File "/Developer/Projects/EclipseWorkspace/vistrails/vistrails/gui/uvcdat/esgf.py", line 131, in cancel
w.cancel()
File "/Developer/Projects/EclipseWorkspace/vistrails/vistrails/gui/uvcdat/esgf.py", line 73, in cancel
self.pipe.terminate()
File "/usr/local/uvcdat/1.2.0/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1462, in terminate
self.send_signal(signal.SIGTERM)
File "/usr/local/uvcdat/1.2.0/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1457, in send_signal
os.kill(self.pid, sig)
OSError: [Errno 3] No such process