Also move NEWS item to correct position (it was in 3.3).

Also updated the docs and added the aliases mentioned by the
references.

 the uninstaller anymore.

The 3.4rc2 Windows uninstaller would fail if pip had been updated
to a version that didn't match the version installed by ensurepip.
This skip is no longer treated as an error, so an updated pip ends
up being handled like any other pip installed package and is left
alone by the CPython uninstaller.

PathEntryFinder instances which only define find_module().

Reported by Yukihiro Nakadaira.

On Windows, the codec of sys.stdout is implemented in Python. At exit, the
codec may be unloaded before the destructor tries to write something to
sys.stdout.

This silences a Coverity complain.

Remove unused variables.

cleaning other modules.  The sys and builtins modules are cleaned last.

I'll look into re-enabling them in issue #20128.