Incorrect conversion of worldToScreen

[jacobmattsson]

The calculation of the screen Y-coordinate in View.worldToScreen seems to be incorrect:

y *= 1.0f - x

Instead of being based on the screen X-coordinate, the calculation of the screen Y-coordinate ought to be based on the viewport height.

[ThomasGorisse]

Thanks for the report!
Would you give a hand on the indirect linked #483 so we include the fixes at the same place?

[ThomasGorisse]

Fixed in v2.2.0