Fix deleteCookie() (would affect Internet Explorer)
Tiki issue #7007. Reported by Caroline Giroux 2019-01-24

Persists in trunk r68584
Index: foncierpedia/lib/tiki-js.js
===================================================================
--- foncierpedia.orig/lib/tiki-js.js
+++ foncierpedia/lib/tiki-js.js
@@ -889,7 +889,7 @@ function deleteCookie(name, section, exp
 //		if ( !setCookie( name, '', 0, path, domain ) ) {
 //		if (getCookie(name)) {
 		document.cookie = name + "="
-		+ ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
+		+ ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01 Jan 1970 00:00:01 GMT";
 //		}
 	}
 }