Add new package Atom Text Editor v1.13.1

atom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!--  vim: set softtabstop=3: -->
+<packages>
+<package id="atom" name="Atom Text Editor" revision="%version%.1" priority="0" reboot="false">
+<variable name="version" value="1.13.1" />
+
+<!-- Devs refuse to write an installer that goes anywhere other than in AppData\Local. Grr:
+     https://github.com/atom/atom/issues/5259
+     Suggested workaround is to download latest zip release from https://github.com/atom/atom/releases/latest
+     and copy into place - but you probably want to remove update.exe from the unpacked zip -->
+
+<check type="file" condition="versionequalto" value="%version%" path="%programfiles%\atom\atom.exe" />
+
+<install cmd='%software%\wpkg\tools\copydir.cmd "%software%\atom\%version%" "%programfiles%\atom" ' />
+<install cmd='cscript %software%\wpkg\tools\create-shortcut.js /folder:"Atom" /linkname:"Atom %version%" /target:"%programfiles%\atom\atom.exe"' />
+
+<upgrade include='remove' />
+<upgrade include='install' />
+
+<remove cmd='cmd /c rmdir /s /q "%programfiles%\atom"' />
+<remove cmd='cscript %software%\wpkg\tools\delete-shortcut.js /folder:"Atom" ' />
+
+</package>
+</packages>