Fix links for HttpCore and HttpClient 5.1.x

Author: michael-o

src/site/resources/httpcomponents-client-5.1.x/documentation.links

@@ -5,5 +5,4 @@
 5.1.1       ../components/httpcomponents-client-5.1.x/5.1.1
 5.1.2       ../components/httpcomponents-client-5.1.x/5.1.2
 5.1.3       ../components/httpcomponents-client-5.1.x/5.1.3
-5.1.4       ../components/httpcomponents-client-5.1.x/5.1.4
-current     ../components/httpcomponents-client-5.1.x/5.1.4
+current     ../components/httpcomponents-client-5.1.x/5.1.3

src/site/resources/httpcomponents-core-5.1.x/documentation.links

@@ -5,4 +5,5 @@
 5.1.1       ../components/httpcomponents-core-5.1.x/5.1.1
 5.1.2       ../components/httpcomponents-core-5.1.x/5.1.2
 5.1.3       ../components/httpcomponents-core-5.1.x/5.1.3
-current     ../components/httpcomponents-core-5.1.x/5.1.3
+5.1.4       ../components/httpcomponents-core-5.1.x/5.1.4
+current     ../components/httpcomponents-core-5.1.x/5.1.4