Merged rev 791389 (NFS home dir lock file fix)

svn path=/branches/ktorrent/3.0/; revision=791392

ChangeLog

 Changes in 3.0.2 :
 - Make sure seed time cannot wrap around (159756)
 - Fix broken convert of blocklists
+- Ported lock file fix for NFS home directories from KDE3 version
 
 Changes in 3.0.1 :
 - Fix sessionTTL not being able to be bigger then 99

ktorrent/main.cpp

@@ -39,8 +39,8 @@
 
 bool GrabPIDLock()
 {
-	// open the PID file in the users ktorrent directory and attempt to lock it
-	QString pid_file = QDir::homePath() + "/.ktorrent.lock";
+	// open the PID file in the /tmp directory and attempt to lock it
+	QString pid_file = QString("/tmp/.ktorrent_kde4_%1.lock").arg(getuid());
 		
 	int fd = open(QFile::encodeName(pid_file),O_RDWR|O_CREAT,0640);
 	if (fd < 0)