Upgrade to 3.1.18

[vitorbrandao]

Smarty 3.1.18 Released

change log:

06.04.2014

• bugfix template inheritance fail when using custom resource after patch of 8.3.2014 (Issue 187)
• bugfix update of composer file (Issue 168 and 184)

05.04.2014

• bugfix default date format leads to extra spaces when displaying dates with single digit days (Issue 182)

26.03.2014

• bugfix Smart_Resource_Custom should not lowercase the resource name (Issue 183)

24.03.2014

• bugfix using a {foreach} property like @iteration could fail when used in inheritance parent templates (Issue 182)

20.03.2014

• bugfix $smarty->auto_literal and mbsting.func_overload 2, 6 or 7 did fail (forum topic 24899)

18.03.2014

• revert change of 17.03.2014

17.03.2014

• bugfix $smarty->auto_literal and mbsting.func_overload 2, 6 or 7 did fail (forum topic 24899)

15.03.2014

• bugfix Smarty_CacheResource_Keyvaluestore did use different keys on read/writes and clearCache() calls (Issue 169)

13.03.2014

• bugfix clearXxx() change of 27.1.2014 did not work when specifing cache_id or compile_id (forum topic 24868 and 24867)

[vitorbrandao]

Done.