Javascript translations

gistfile1.txt

Javascript translations:
base requirement:
- have no hardcoded strings in javascript

general aproach:
- have strings defined in view file (html/erb/haml...) in data attribute, this enables their translation
- access these translated strings from javascript

angular directive approach:
- we need to translate strings used in directive templates
- to enable translation, template has to be erb/haml and it has to be served by rails to actually perform the translation
  solution: create directive_templates_controller that will serve the directive templates, and define the routes for it.
  then in directive definition, load the template eg. templateUrl: "directive_templates/tooltip". This will feed the directive
  with correct translated template.