Merge branch 'djvu_desktop' into 'master'

Initial ucam package for DjVu Desktop v2.1

See merge request !59

packages/djvu_desktop.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
+
+  <package id="djvu_desktop" name="DjVu desktop" revision="%version%.1" reboot="false" priority="91">
+	<variable name="version" value="2.1" />
+  <check type="uninstall" condition="exists" path="WinDjView %version%" />
+
+	<install cmd='cmd /c "%WPKGSOFTWARE%\djvu\WinDjView-%version%-Setup.exe" /S' />
+
+  <upgrade include="remove" />
+  <upgrade include="install" />
+
+	<remove cmd='cmd /c %WPKGSOFTWARE%\wpkg\tools\waitforprocess.cmd Au_.exe' />
+	<remove cmd='"%PROGRAMFILES%\WinDjView\uninstall.exe" /S' />
+	<remove cmd='cmd /c %WPKGSOFTWARE%\wpkg\tools\waitforprocess.cmd Au_.exe' />
+
+  </package>
+
+</packages:packages>