Index: branches/5.1.x/core/install/upgrades.sql
===================================================================
diff -u -r13444 -r13454
--- branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 13444)
+++ branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 13454)
@@ -1799,3 +1799,10 @@
 ALTER TABLE ConfigurationValues
 	ADD HintLabel VARCHAR(255) NULL DEFAULT NULL,
 	ADD INDEX (HintLabel);
+
+INSERT INTO ConfigurationValues VALUES(DEFAULT, 'ModRewriteUrlEnding', '.html', 'In-Portal', 'in-portal:configure_advanced', 'la_section_SettingsWebsite', 'la_config_ModRewriteUrlEnding', 'select', '', '=+,/=+/,.html=+.html', 10.021, 0, 0, NULL);
+INSERT INTO ConfigurationValues VALUES(DEFAULT, 'ForceModRewriteUrlEnding', '0', 'In-Portal', 'in-portal:configure_advanced', 'la_section_SettingsWebsite', 'la_config_ForceModRewriteUrlEnding', 'checkbox', '', NULL, 10.022, 0, 0, 'la_hint_ForceModRewriteUrlEnding');
+
+UPDATE Phrase
+SET l<%PRIMARY_LANGUAGE%>_Translation = 'Enable SEO-friendly URLs mode (MOD-REWRITE)'
+WHERE Phrase = 'la_config_use_modrewrite' AND l<%PRIMARY_LANGUAGE%>_Translation = 'Use MOD REWRITE';