* mark string as html safe before passing to translation instead of bypassing HTML escape using {{{unsafe}}} syntax
* replace ember-i18n with ember-intl
> helpers/poll-has-users.js should pass jscs.
> requireSemicolons: Missing semicolon after statement at helpers/poll-has-users.js
is incostitent with JSHint which complains about this semicolon
other ones should be fixed by rewrite of create/options
