More changes were applied to make the code suitable for Python 3. In addition,...

More changes were applied to make the code suitable for Python 3. In addition, a test module was started.

toolbox/scalelib.py

 # -*- coding: latin-1 -*-
 """ScaleLib - a Python library for scaling raster data"""
-from geo.gridenvelope2d import GridEnvelope2D
-from raster import Raster
+from formats.gridenvelope2d import GridEnvelope2D
+from formats.raster import Raster
 from math import floor
 try:
     import numpy as np