Do not allow automatic update in case YaCy is installed to the Program

Files folder on Windows. There are no permissions to write that folder
and update would fail.

htroot/ConfigUpdate_p.html

@@ -118,6 +118,8 @@
       <p>manual update:<br/>apt-get update &amp;&amp; apt-get install yacy</p>
       <p>automatic update: add the following line to /etc/crontab<br/>0 6 * * * root apt-get update &amp;&amp; apt-get -y --force-yes install yacy</p>
       ::
+      <p>YaCy has been installed to the Program Files directory. Automatic update is not possible.<br/>Download and install the latest version from the web page <a href="http://www.yacy.net/">http://www.yacy.net/</a></p>
+      ::
     #(/candeploy)#
     
     #%env/templates/footer.template%#

htroot/ConfigUpdate_p.java

@@ -55,6 +55,9 @@ public class ConfigUpdate_p {
         if (yacyBuildProperties.isPkgManager()) {
             prop.put("candeploy", "2");
             return prop;
+        } else if (OS.isWindows && sb.appPath.toString().indexOf("Program Files") > -1) {
+            prop.put("candeploy", "3");
+            return prop;
         } else if (OS.canExecUnix || OS.isWindows) {
             // we can deploy a new system with (i.e.)
             // cd DATA/RELEASE;tar xfz $1;cp -Rf yacy/* ../../;rm -Rf yacy