Add machine-specific default settings
Correct bugs introduced in run_amwg_diags
Correct bugs introduced in run_amwg_diags
Loop over multiple sets
Bug fix in run_amwg_diags: places sets loop inside if-then

Also temporarily set to always call with --sets
Bug fix in setup script
Correct bug in host determination, change default obs path on titan/rhea
Make default interactive node time 12h again.