Retained 1.27.0 config for compatibility testing

Author: jodygarnett

geowebcache/core/src/main/resources/geowebcache.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <gwcConfiguration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xmlns="http://geowebcache.org/schema/1.27.0"
-  xsi:schemaLocation="http://geowebcache.org/schema/1.27.0 http://geowebcache.org/schema/1.27.0/geowebcache.xsd">
+  xmlns="http://geowebcache.org/schema/1.28.0"
+  xsi:schemaLocation="http://geowebcache.org/schema/1.28.0 http://geowebcache.org/schema/1.28.0/geowebcache.xsd">
   <version>1.8.0</version>
   <backendTimeout>120</backendTimeout>
   <serviceInformation>

geowebcache/core/src/main/resources/org/geowebcache/config/geowebcache.xsd

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xml="http://www.w3.org/XML/1998/namespace"
-  targetNamespace="http://geowebcache.org/schema/1.27.0" xmlns:gwc="http://geowebcache.org/schema/1.27.0"
-  elementFormDefault="qualified" version="1.27.0">
+  targetNamespace="http://geowebcache.org/schema/1.28.0" xmlns:gwc="http://geowebcache.org/schema/1.28.0"
+  elementFormDefault="qualified" version="1.28.0">
 
   <xs:element name="gwcConfiguration">
     <xs:annotation>