Redirect / to /dash
only set surveyor if not previously set (fixes #59)
Merge pull request #320 from qpfiffer/feature/58_Root_redirecct_to_dashboard

Redirect / to /dash
Merge pull request #319 from wraithan/sticky_surveyor

only set surveyor if not previously set (fixes #59)
Merge remote-tracking branch 'upstream/master'