Added require threads for windows

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2655 2b470e98-0d58-463d-a4d8-8e2adae1ed80

FHEM/Blocking.pm

@@ -93,8 +93,10 @@ sub
 BlockingKill($)
 {
   my $pid = shift;
+  if($^O !~ m/Win/) {
     Log 1, "Terminated $pid" if($pid && kill(9, $pid));
   }
+}
 
 sub
 BlockingExit($)
@@ -103,6 +105,7 @@ BlockingExit($)
 
   if($^O =~ m/Win/) {
     close($client) if($client);
+    eval "require threads;";
     threads->exit();
 
   } else {