Logout takes you to the front page instead of leaving you on your user activity page
Admins who haven't been approved can log in when must_approve_users is enabled
Show the entire history of replies above a post when you expend "in reply to"
Update documentation

* Change recommendation for install path to /var/www/discourse
* Fix instructions for redis-server installation
* Set yourself as system user during install
* Clarify some instructions
Add GNU screen configuration file for vagrant love
Merge pull request #1306 from Supermathie/sysadmin-docs

Update documentation
Merge pull request #1307 from Supermathie/vagrant-screen

Add GNU screen configuration file for vagrant love