Fix #304: redirect:/url, forward:/ does not work property
Invalid #288: Loose the correct @index when have a each loop inside another
Sync array/list access with handlebars.js #150
Fix #299: Update MapValueResolver.resolve to return a map when necessary
Fix #149 support negative numbers on helper arguments
new unit test for #311 and #312
Fix #314 and #315: sync with helper with handlebars.js
Fix #318: TemplateCache is based on filename alone