+zoom: new target profile element literalTransform that holds XSLT
+(encoded as string) for target. Only if present and non-zero length it is
+considered present. This takes precedence over transform.
+
+--- 1.3.5 2011/08/12
+
+z3950_client: mark non-surrogate diagnostics from backend.
+
+zoom: a proxy may be specified for HTTP fetch of target profiles.
+
--- 1.3.4 2011/08/01
Honor piggyback. Makes some SRU targets behave that insist on