Add warning for incorrect process running

minecraft/index.cgi

@@ -122,5 +122,12 @@ if ($starting == 2) {
 		}
 	}
 
+# Check if something else is running
+my $opid;
+if (!$pid && ($opid = &is_minecraft_port_in_use())) {
+	print "<font color=red><b>",&text('index_portwarn', $opid),
+	      "</b></font><p>\n";
+	}
+
 &ui_print_footer("/", $text{'index'});
 

minecraft/lang/en

@@ -21,6 +21,7 @@ index_downloaddesc=Click this button to download and install the latest version
 index_upgradedesc=A new Minecraft server version is now available for download.
 index_upgrade=Upgrade Now
 index_startwarn=WARNING! A different version of Minecraft may be configured to start at boot time.
+index_portwarn=WARNING! Other process with PID $1 is using using the Minecraft server port. This may be another version of the Minecraft server.
 
 check_edir=The base directory $1 does not exist
 check_ejar=The server JAR file $1 does not exist