A slew of changes based on William Fulton's code review.

- Fixed naming conventions; SwigPyBuiltin is used a lot
- Removed use of std::vector
- builtin.swg isn't included if -builtin isn't specified
- Changed many feature names to use a "python:" prefix
- Eliminated static vars in std_pair.i
- Eliminated C++-style comments (//)
- Enabled autodoc and docstring with -builtin
- Fixed non-ansi generated C code
- Detect and complain if two incompatible swig modules are loaded
- Removed argcargvtest_runme3.py, and fixed argcargvtest_runme.py
  so that 2to3 handles it better
- Removed anonymous namespaces
- Eliminated builtin_init typemaps; consolidated functionality into
  SWIG_Python_NewPointerObj
- Eliminate printf warnings from %U conversion character by switching
  to %S, which works just as well
- Fixed li_std_set_runme.py for python3, which returns set members in
  a different order from python2





git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/szager-python-builtin@12562 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Lib/python/std_multimap.i

@@ -42,7 +42,7 @@
       static PyObject *from(const multimap_type& multimap) {
 	swig_type_info *desc = swig::type_info<multimap_type>();
 	if (desc && desc->clientdata) {
-	  return SWIG_NewPointerObj(new multimap_type(multimap), desc, SWIG_POINTER_OWN);
+	  return SWIG_InternalNewPointerObj(new multimap_type(multimap), desc, SWIG_POINTER_OWN);
 	} else {
 	  size_type size = multimap.size();
 	  int pysize = (size <= (size_type) INT_MAX) ? (int) size : -1;