updated journalist workstation setup docs
fixes #78
fixed image url

fixed image url for journalist interface
Merge pull request #79 from dolanjs/master

remove sshfs_fix and enable ossec authd
wrote user manual (#57)
Merge branch 'master' of github.com:freedomofpress/securedrop
I changed the screenshot, so I need to change the code word (#57)
Merge remote-tracking branch 'upstream/master'