lv alert programs: update to new API

gstlal-inspiral/bin/gstlal_inspiral_lvalert_background_plotter

@@ -142,7 +142,7 @@ if not gid_list:
 	lvalert_data = json.loads(sys.stdin.read())
 	logging.info("%(alert_type)s-type alert for event %(uid)s" % lvalert_data)
 	logging.info("lvalert data: %s" % repr(lvalert_data))
-	filename = os.path.split(urlparse.urlparse(lvalert_data["file"]).path)[-1]
+	filename = os.path.split(urlparse.urlparse(lvalert_data["data"]["filename"]).path)[-1]
 	if filename not in (u"ranking_data.xml.gz",):
 		logging.info("filename is not 'ranking_data.xml.gz'.  skipping")
 		sys.exit()

gstlal-inspiral/bin/gstlal_inspiral_lvalert_psd_plotter

@@ -126,7 +126,7 @@ if not graceids:
 	lvalert_data = json.loads(sys.stdin.read())
 	logging.info("%(alert_type)s-type alert for event %(uid)s" % lvalert_data)
 	logging.info("lvalert data: %s" % repr(lvalert_data))
-	filename = os.path.split(urlparse.urlparse(lvalert_data["file"]).path)[-1]
+	filename = os.path.split(urlparse.urlparse(lvalert_data["data"]["filename"]).path)[-1]
 	if filename not in (u"psd.xml.gz",):
 		logging.info("filename is not 'psd.xml.gz'.  skipping")
 		sys.exit()

gstlal-inspiral/bin/gstlal_inspiral_lvalert_snrtimeseries_plotter

@@ -82,7 +82,7 @@ def parse_command_line():
 		lvalert_data = json.loads(sys.stdin.read())
 		logging.info("%(alert_type)s-type alert for event %(uid)s" % lvalert_data)
 		logging.info("lvalert data: %s" % repr(lvalert_data))
-		filename = path.split(urlparse.urlparse(lvalert_data["file"]).path)[-1]
+		filename = path.split(urlparse.urlparse(lvalert_data["data"]["filename"]).path)[-1]
 		if filename not in (u"psd.xml.gz",):
 			logging.info("filename is not 'psd.xml.gz'.  skipping")
 			sys.exit()