Change obworker daemon user to 'ob' (which is created in setup.sh and also used by obbalancer).
Update comments and message text to make it clear to the user and developer that setup.sh *requires* that dependencies are installed and configured in default paths (as defined by install-sx.sh).
Merge branch 'origin/master'
Merge pull request #9 from evoskuil/master

Resolution for issues #6, #7 & #8.