Added logging to UpgradeToPS3.ps1

UpgradeToPS3.ps1 failed when tested with Ansible. Added logging output
to file C:\powershell\install.log.

windows/win_user.ps1

@@ -0,0 +1,76 @@
+#!powershell
+# (c) 2014, Matt Martz <matt@sivel.net>, and others
+#
+# 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 $args;
+
+$result = New-Object psobject;
+Set-Attr $result "changed" $false;
+
+If (-not $params.username.GetType)
+{
+    Fail-Json $result "missing required arguments: username"
+}
+
+If (-not $params.password.GetType)
+{
+    Fail-Json $result "missing required arguments: password"
+}
+
+$extra_args = ""
+If ($params.extra_args.GetType)
+{
+    $extra_args = $params.extra_args;
+}
+
+If ($params.creates.GetType -and $params.state.GetType -and $params.state -ne "absent")
+{
+    If (Does-User-Exist $params.username)
+    {
+        Exit-Json $result;
+    }
+}
+
+$logfile = [IO.Path]::GetTempFileName();
+if ($params.state.GetType -and $params.state -eq "absent")
+{
+    NET USER $params.username $params.password /ADD
+}
+
+Set-Attr $result "changed" $true;
+
+$logcontents = Get-Content $logfile;
+Remove-Item $logfile;
+
+Set-Attr $result "log" $logcontents;
+
+Exit-Json $result;
+
+Function Does-User-Exist($username)
+{
+$objComputer = [ADSI]("WinNT://$env:COMPUTERNAME,computer")
+
+$colUsers = ($objComputer.psbase.children |
+    Where-Object {$_.psBase.schemaClassName -eq "User"} |
+        Select-Object -expand Name)
+
+$blnFound = $colUsers -eq $username
+
+}