FIX: Title text should be correctly escaped since we are generating a raw html

Minor bug fix:
  I escaped title text with Handlebars.Utils.escapeExpression.

Bug generation step:
If you include a quote(') character in likes_long field in config/locales/client.?? file,
You will get an incorrectly formatted html in a topic list page.
And when you mouse over the like count, the text will be truncated.