- converted from Python2 code to Python3 code

- in camlib.py, CNCJob class -> generate_from_excellon_by_tool() was
failing in the line to sort the tools due of been unable to compare
between dict's. I replaced that section.

make_win32.py

@@ -43,16 +43,16 @@ if sys.platform == "win32":
 buildOptions = dict(
     compressed=False,
     include_files=include_files,
-    icon='share:flatcam_icon48.ico',
+    icon='share/flatcam_icon48.ico',
     # excludes=['PyQt4', 'tk', 'tcl']
     excludes=['scipy.lib.lapack.flapack.pyd',
               'scipy.lib.blas.fblas.pyd',
               'QtOpenGL4.dll']
 )
 
-print "INCLUDE_FILES", include_files
+print(("INCLUDE_FILES", include_files))
 
-execfile('clean.py')
+exec(compile(open('clean.py').read(), 'clean.py', 'exec'))
 
 setup(
     name="FlatCAM",