Merge pull request #13 from gertvv/develop

Fix #12: force monotonous value functions
Merge pull request #15 from joelkuiper/develop

 Move from clinici.co to patavi & fix #14
Merge pull request #16 from joelkuiper/develop

Exact SWING, remove MACBETH indifference & error handling
Merge pull request #17 from joelkuiper/develop

Use dynamic templates instead of directives for steps
Fix #19 display rank acceptabilities when there are duplicated values
Fix #18 switch graphs for ranks by alternative and vice versa