This reverts commit 0f56ee7b.

refactor out profile url generation into local_or_remote_person_path and use it everywhere. closes #2471

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