Fixes Open-Systems-Pharmacology#57 Draft watermark is ALWAYS generated (

Open-Systems-Pharmacology#58)

* Fixes Open-Systems-Pharmacology#57 Draft watermark is ALWAYS generated

* Fixes appveyour issue

* Fixes appveyour issue

Fixes Open-Systems-Pharmacology#54 Update Simmodel schema (Open-Syste…

…ms-Pharmacology#56)

Fixes Open-Systems-Pharmacology#55 Fix legend in time profile plot