Bug 1200 - ./waf install doesn't install Python bindings properly

bindings/python/wscript

@@ -602,6 +602,7 @@ def build(bld):
     bld.new_task_gen(features='copy',
                      source="ns__init__.py",
                      target='ns/__init__.py')
+    bld.install_as('${PYTHONDIR}/ns/__init__.py', 'ns__init__.py')
 
 
     if env['ENABLE_PYTHON_BINDINGS'] and env['BINDINGS_TYPE'] in ('monolithic', 'both'):

src/wscript

@@ -354,6 +354,7 @@ def ns3_python_bindings(bld):
             pass
     pymod.env['CXXDEFINES'] = defines
     pymod.includes = 'bindings'
+    pymod.install_path = '${PYTHONDIR}/ns'
     return pymod