Use make_function uniformly to build callable objects.

Fix wstring support so it doesn't break gcc2.95.x, which has no wstring.

Modify CallPolicies protocol so it can safely adjust the argument tuple.


[SVN r20090]

libs/python

@@ -1 +1 @@
-Subproject commit db192e1e016b0bb1e78a5262d6b4d8b0fd57078c
+Subproject commit bec2de08fe27b729ada7d7b8fc305c30eb98271d