* Fully implemented 'Add Demo project' button to ribbon in separate Demo tab. This will create a project that is configured to calculate piping without errors. Related to Issue [WTI-139]git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@787 5a3db67b-de53-47b5-99c8-a1c30a6650e2Former-commit-id: b24c8ac6403d1774c86ac0275f4f7c534471bb30