- add missing class to UI file (found and automatically added by Qt Designer)
- add more sensible stepsize - you are dealing in practice with rations in the range 1.2 - 1.6 thus a stepsize of 1.0 is not helpful
This integrates the ability to manage dimensional constraint driving/driven status
in the constraint edition dialog box.
It adds a checkbox in the dialog to show/select whether a constraint is driving or
driven. When the constraint value is modified, it is automatically set as driving.
Main focus is to allow to edit name (alias) of reference (driven) constraints
directly in the constraint edition box.
Resolves#3793, #3978
+ add signal showFormulaDialog to QuantitySpinBox in order to indicate whether the formula dialog opens or closes
+ when formula dialog opens then hide the button box in the parent dialog, show it again when the formula dialog closes
