Replaced punycode.js vendored asset with a bower package #5194

fixes #5254

Federation improvements

That's at least readable, return false just causes
silly follow up errors

Sidekiq 3.0 initialized the logger early before we had a chance
to set the logfile. Then we set a new logfile causing the old
logger to be closed. Since the default logger points to stdout,
it got closed causing all kinds of issues.

fix locale of invitation email subject #5231

Fixed deformation of getting started popovers

port profile page to backbone.js

* re-add stream on profile page
* more controller refactoring

* added handlebars helper for markdown formatting
* finished port of profile sidebar view to handlebars template
* people_controller refactoring

* include 'js-routes' for rails routes in javascript
  (TODO: config options?)
* add handlebars helper for rails routes

* unblock the user via ajax

* introduce new presenters and extend the functionality of the BasePresenter
* add a handlebars template for the profile sidebar, render it everytime we need to update
* introduce a 'aspect_membership:update' global event

Release 0.4.1.0

Changelogs for terms and podmin admin mail rake task

Related to #5111