Util: Rename modified apache classes (Gitlab ticket #353)

to avoid conflict in applications linking to apache jars
As requested by 'mesh' project
Remove with-libhttpclient-java build option
No known external uses other than obsolete i2pcontrol plugin

apps/i2pcontrol/java/net/i2p/i2pcontrol/HostCheckHandler.java

@@ -12,7 +12,7 @@ import net.i2p.I2PAppContext;
 import net.i2p.data.DataHelper;
 import net.i2p.util.Log;
 
-import org.apache.http.conn.util.InetAddressUtils;
+import net.i2p.apache.http.conn.util.InetAddressUtils;
 
 import org.eclipse.jetty.server.Request;
 import org.eclipse.jetty.server.handler.HandlerWrapper;