PyCuAmpcor/examples/cuDenseOffsets:
+ add prepareGeometry() to generate the cooresponding geometry file
+ update file path in xml file to support dir change
+ fix str.decode bug with try/except statement
+ printout used time
+ check --redo before initiate PyCuAmpcor to avoid the long GPU memory error message
PyCuAmpcor/README.md: fix typos for ROIPAC