* Improved/fixed use of visual roles that are discrete or continuous, and, when the later, also are isMeasure visual roles. These kind of visual role was not being considered a measure visual role, and that would affect null datum detection on read.
* Improved/fixed definition of continuous visual roles with more than one dimension, for which configurations like the valueType were being ignored, causing non-inheritance by the dimensions in the visual roles binding phase. In turn, this required additional dimension groups defaults to be defined, to achieve the same effect.