time zone data: Update to 2016j

Changes:
     Saratov, Russia switches from +03 to +04 on 2016-12-04 at 02:00.
     This hives off a new zone Europe/Saratov from Europe/Volgograd.

     The new zone Asia/Atyrau for Atyraū Region, Kazakhstan, is like
     Asia/Aqtau except it switched from +04/+05 to +05/+06 in spring
     1999, not fall 1994.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

modules/luci-base/luasrc/sys/zoneinfo/tzdata.lua

@@ -220,6 +220,7 @@ TZ = {
 	{ 'Asia/Aqtau', '<+05>-5' },
 	{ 'Asia/Aqtobe', '<+05>-5' },
 	{ 'Asia/Ashgabat', '<+05>-5' },
+	{ 'Asia/Atyrau', '<+05>-5' },
 	{ 'Asia/Baghdad', 'AST-3' },
 	{ 'Asia/Bahrain', 'AST-3' },
 	{ 'Asia/Baku', '<+04>-4' },
@@ -358,6 +359,7 @@ TZ = {
 	{ 'Europe/Samara', '<+04>-4' },
 	{ 'Europe/San Marino', 'CET-1CEST,M3.5.0,M10.5.0/3' },
 	{ 'Europe/Sarajevo', 'CET-1CEST,M3.5.0,M10.5.0/3' },
+	{ 'Europe/Saratov', '<+04>-4' },
 	{ 'Europe/Simferopol', 'MSK-3' },
 	{ 'Europe/Skopje', 'CET-1CEST,M3.5.0,M10.5.0/3' },
 	{ 'Europe/Sofia', 'EET-2EEST,M3.5.0/3,M10.5.0/4' },