[wip/gladys] Update to gladys-0.2.5

gladys-0.2.5

Changes since v0.2.3:

Patrick Bechon (2):
      Fix a warning : Python.h should be the first file included.     See https://docs.python.org/2/c-api/intro.html#include-files
      Add a python binding to get the cost of a path

Pierrick Koch (6):
      [gdalwrap] vfloat2vuchar -> raster2bytes
      [tool] update robotpkg script
      [test] workaround gdal equality test
      add gdal points
      [python] search w/cost returns (path,cost)
      [cmake] add python/test options