Move the 3k reST doc tree in place.

Doc/library/allos.rst

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+
+.. _allos:
+
+*********************************
+Generic Operating System Services
+*********************************
+
+The modules described in this chapter provide interfaces to operating system
+features that are available on (almost) all operating systems, such as files and
+a clock.  The interfaces are generally modeled after the Unix or C interfaces,
+but they are available on most other systems as well.  Here's an overview:
+
+
+.. toctree::
+
+   os.rst
+   time.rst
+   optparse.rst
+   getopt.rst
+   logging.rst
+   getpass.rst
+   curses.rst
+   curses.ascii.rst
+   curses.panel.rst
+   platform.rst
+   errno.rst
+   ctypes.rst