use newer precompiler for handlebars
update ember,
update components, templates and views
remove ArticleSectionHeader,
remove custom handling of hashes
some CR, and test 'fixes'
WikiaFooter is a component
small fix for i18nHelper
fix thumbnailer tests
small fixes for gulp templates
inverse logic, indent
update two deps along with it
on \n less
update JSDoc for articleLink
Merge pull request #459 from Wikia/Update-Ember

HG-475 Update Ember