Merge branch 'winpcap.xml' into 'master'

Winpcap.xml

See merge request !120

packages/winpcap.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
+
+  <package id="winpcap" name="WinPCap" revision="%version%.1" priority="0" reboot="false">
+    <variable name="version" value="4.1.3" />
+    <variable name="fileversion" value="4.13" />
+
+    <!-- download the nmap zip from http://nmap.org/download.html#windows (version 7.12 seems to be the last version to bundle winpcap),
+    then unpack and copy the winpcap-*.exe file out. The official winpcap installer deliberately refuses to run silently! -->
+
+    <check type="uninstall" condition="exists" path="WinPcap %version%" />
+
+    <install cmd='%WPKGSOFTWARE%\winpcap\winpcap-nmap-%fileversion%.exe /S' />
+
+    <upgrade include='remove' />
+    <upgrade include='install' />
+    
+    <remove cmd='cmd /c %WPKGSOFTWARE%\wpkg\tools\waitforprocess.cmd Au_.exe' />
+    <remove cmd='cmd /c start "" /wait /b "%programfiles%\winpcap\uninstall.exe" /S' />
+    <remove cmd='cmd /c %WPKGSOFTWARE%\wpkg\tools\waitforprocess.cmd Au_.exe' />
+  </package>
+
+</packages:packages>