Rename some modules so they can have seperate doc stubs.

library/windows/ping.ps1

@@ -1,30 +0,0 @@
-#!powershell
-# This file is part of Ansible
-#
-# Ansible is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Ansible is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
-
-# WANT_JSON
-# POWERSHELL_COMMON
-
-$params = Parse-Args $args;
-
-$data = 'pong';
-If ($params.data.GetType)
-{
-   $data = $params.data;
-}
-
-$result = New-Object psobject;
-Set-Attr $result "ping" $data;
-echo $result | ConvertTo-Json;