Simplify uninstall check for Mathematica

mathematica.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <packages>
-<package id="mathematica" name="Mathematica" revision="%version%.1" reboot="false" priority="30">
+<package id="mathematica" name="Mathematica" revision="%version%.2" reboot="false" priority="30">
  
   <variable name="version" value="9.0.1" />
  
-  <check type="uninstall" condition="versiongreaterorequal" path="Wolfram Mathematica 9 (M-WIN-L 9.0.1 4058310)" value="%version%" />
+  <check type="uninstall" condition="versiongreaterorequal" path="Wolfram Mathematica.*" value="%version%" />
 
   <!-- mathematica seems to complain if it can't run this uninstaller?! -->
 <!--   <install cmd='cmd /c if exist "%AllUsersProfile%\Application Data\Mathematica\Applications\Extras\UninstallFiles\Windows\unins000.exe" "%AllUsersProfile%\Application Data\Mathematica\Applications\Extras\UninstallFiles\Windows\unins000.exe" /silent'/> -->