Refactorings

- Cleanup Translatable module (`translation_params` method too large)
- Move globalize_helpers partial to admin folder
- Use any class for method translation_params
- Helpers in `GlobalizeHelpers` make sure all are in use and see if they can be more legible
- Review js name clases and methods see if they can be more legible
- Refactor milestone views into partials with nice spacing between attributes

app/views/admin/budget_investment_milestones/_form.html.erb

@@ -1,5 +1,5 @@
 <div>
-  <%= render "budgets/investments/milestones/globalize_locales" %>
+  <%= render "globalize_locales" %>
 </div>
 
 <%= form_for [:admin, @investment.budget, @investment, @milestone] do |f| %>

app/views/admin/budget_investment_milestones/_globalize_locales.html.erb

@@ -0,0 +1,19 @@
+<% I18n.available_locales.each do |locale| %>
+  <span>
+    <%= link_to name_for_locale(locale), "#",
+                style: css_to_display_translation?(@milestone, locale),
+                class: "js-globalize-locale-link #{highlight_current?(locale)}",
+                data: { locale: neutral_locale(locale) },
+                remote: true %>
+    <%= link_to t("admin.milestones.form.remove_language"), "#",
+                id: "delete-#{neutral_locale(locale)}",
+                style: show_delete?(locale),
+                class: 'float-right delete-language',
+                data: { locale: neutral_locale(locale) } %>
+  </span>
+<% end %>
+
+<%= select_tag :translation_locale,
+               options_for_locale_select,
+               prompt: t("admin.milestones.form.add_language"),
+               class: "js-globalize-locale" %>