Fix links to SIRI

src/guides/quickstart-guide.md

@@ -24,7 +24,7 @@ You will need transit data to power your OneBusAway installation.  At minimum, y
 [GTFS](https://developers.google.com/transit/gtfs/) static schedule data feed for your target
 transit agency.  Optionally, but ideally, you will also need real-time data for your transit agency.  OneBusAway
 supports real-time data for delays, service alerts, and vehicle positions in the
-[GTFS-realtime](https://developers.google.com/transit/gtfs-realtime) format or the [SIRI](http://siri.org.uk/) format.
+[GTFS-realtime](https://developers.google.com/transit/gtfs-realtime) format or the [SIRI](https://www.siri-cen.eu) format.
 
 ## Download a Quickstart Bundle
 

src/guides/realtime-configuration-guide.md

@@ -41,7 +41,7 @@ Without a `TripUpdates` feed OneBusAway will discard the vehicle positions.
 
 ## SIRI VM
 
-We support [SIRI](http://siri.org.uk/) out of the box, including support for vehicle monitoring (VM) and situation
+We support [SIRI](https://www.siri-cen.eu) out of the box, including support for vehicle monitoring (VM) and situation
 exchange (SX).  To add support, create a `SiriController`
 bean in your `data-sources.xml` file.  Then specify SIRI endpoint requests indicating
 your SIRI data-source.  Here is a full example:
@@ -88,7 +88,7 @@ bean in your `data-sources.xml` file.  Then specify the URL for your real-time d
 ## Custom Implementation
 
 Interested in adapting your own real-time system to OneBusAway?  The best option is to create an adapter between your system
-and an existing specification like [GTFS-realtime](http://code.google.com/transit/realtime/) or [SIRI](http://siri.org.uk/)
+and an existing specification like [GTFS-realtime](http://code.google.com/transit/realtime/) or [SIRI](https://www.siri-cen.eu)
 and then use OneBusAway's native support for those formats.
 
 However, if that's not going to cut it, you can create your own custom real-time data-source plugin to OneBusAway.  This

src/guides/wiki/gtfs-realtime-resources.md

@@ -19,7 +19,7 @@ We provide a number of libraries and tools for working with [GTFS-realtime](http
 
 * [**onebusaway-gtfs-realtime-api**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-api/wiki) - a set of Java classes generated from the [GTFS-realtime Protocol Buffer spec](https://developers.google.com/transit/gtfs-realtime/gtfs-realtime-proto) that allow you to produce and consume raw GTFS-realtime data.
 * [**onebusaway-gtfs-realtime-exporter**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-exporter/wiki) provides a simple library to assist in sharing GTFS-realtime data.
-* [**onebusaway-gtfs-realtime-from-siri-cli**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-from-siri-cli/wiki) provides a command-line tool for converting [SIRI](http://siri.org.uk/) real-time data into GTFS-realtime.
+* [**onebusaway-gtfs-realtime-from-siri-cli**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-from-siri-cli/wiki) provides a command-line tool for converting [SIRI](https://www.siri-cen.eu) real-time data into GTFS-realtime.
 * [**onebusaway-gtfs-realtime-from-nextbus-cli**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-from-nextbus-cli/wiki) provide a command-line tool for converting [NextBus API](nextbus.com/xmlFeedDocs/NextBusXMLFeed.pdf) real-time data into GTFS-realtime.
 * [**onebusaway-gtfs-realtime-munin-plugin**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-munin-plugin/wiki) provides a [Munin](http://munin-monitoring.org/) plugin for logging information about a GTFS-realtime feed.
 * [**onebusaway-gtfs-realtime-nagios-plugin**](https://github.com/OneBusAway/onebusaway-gtfs-realtime-nagios-plugin/wiki) provides a [Nagios](http://www.nagios.org/) plugin for monitoring a GTFS-realtime feed.