Remove default rake task's dependency on spec:fixtures for now, to see if that stops travis from running all the specs twice

Just a mispelled 'diaspora' on the Readme.md

guid default of "" never gets set to a secure random hex (in mysql at least)

better commented_posts_stream

This reverts commit 8a275682, reversing
changes made to 31ef2d60.

Conflicts:

	app/helpers/stream_helper.rb
	app/views/aspects/index.html.haml
	config/locales/diaspora/en.yml
	config/routes.rb
	spec/lib/stream/comments_spec.rb

Like stream

Fix Bug 2274, empty tag

modify url invitation facebook

backup task handles postgresql dumps