Add minimal sample configuration, so that lazy people won't copy libraries/config.default.php (RFE #1544570).

config.sample.inc.php

@@ -0,0 +1,60 @@
+<?php
+
+/* $Id$ */
+// vim: expandtab sw=4 ts=4 sts=4:
+
+/**
+ * phpMyAdmin sample configuration, you can use it as base for 
+ * manual configuration. For easier setup you can use scripts/setup.php
+ *
+ * All directives are explained in Documentation.html and on phpMyAdmin 
+ * wiki <http://wiki.cihar.com>.
+ */
+
+/* 
+ * This is needed for cookie based authentication to encrypt password in 
+ * cookie
+ */
+$cfg['blowfish_secret'] = ''; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */
+
+/* 
+ * Servers configuration
+ */
+$i = 0;
+
+/* 
+ * First server
+ */
+$i++;
+/* Authentication type */
+$cfg['Servers'][$i]['auth_type'] = 'cookie';
+/* Server parameters */
+$cfg['Servers'][$i]['host'] = 'localhost';
+$cfg['Servers'][$i]['connect_type'] = 'tcp';
+$cfg['Servers'][$i]['compress'] = false;
+/* Select mysqli if your server has it */
+$cfg['Servers'][$i]['extension'] = 'mysql';
+/* User for advanced features */
+$cfg['Servers'][$i]['controluser'] = 'pmausr';
+$cfg['Servers'][$i]['controlpass'] = 'pmapass';
+/* Advanced phpMyAdmin features */
+$cfg['Servers'][$i]['pmadb'] = 'phpmyadmin';
+$cfg['Servers'][$i]['bookmarktable'] = 'pma_bookmark';
+$cfg['Servers'][$i]['relation'] = 'pma_relation';
+$cfg['Servers'][$i]['table_info'] = 'pma_table_info';
+$cfg['Servers'][$i]['table_coords'] = 'pma_table_coords';
+$cfg['Servers'][$i]['pdf_pages'] = 'pma_pdf_pages';
+$cfg['Servers'][$i]['column_info'] = 'pma_column_info';
+$cfg['Servers'][$i]['history'] = 'pma_history';
+
+/* 
+ * End of servers configuration
+ */
+
+/*
+ * Directories for saving/loading files from server
+ */
+$cfg['UploadDir'] = '';
+$cfg['SaveDir'] = '';
+
+?>