debian/watch: Update for current URL scheme

Conflicts:
	debian/changelog

debian/changelog

+gst-plugins-good1.0 (1.5.1-2) UNRELEASED; urgency=medium
+
+  * debian/watch: Update for current URL scheme
+
+ -- Iain Lane <laney@debian.org>  Mon, 15 Jun 2015 10:56:07 +0100
+
 gst-plugins-good1.0 (1.5.1-1) experimental; urgency=medium
 
   * New unstable upstream release.

debian/watch

 version=3
-http://gstreamer.freedesktop.org/src/gst-plugins-good/gst-plugins-good-(0\.11\..*)\.tar\.gz
+http://gstreamer.freedesktop.org/src/gst-plugins-good/gst-plugins-good-(1\.[\d\.]+)\.tar\.xz