Fix layout engine issues.

Layout engine will not stop iterating after each component is
satisfied with offered space. Existing algorithm leaded to situation that offered dimensions were smaller than given one, which in some cases like horizontal labels resulted with strange layout (empty space).
Iterative algorithm will finish only after 5 iterations or if there is
no space left.

Category axis while determining if it fits within offered space, checked only text. `Width/Height` is not just dimensions of the text, but also marks and padding.

Close #936, #1207.
You could just make this a package protected getter and then set the variable directly or just even make the instance variable package protected and be done with it.  The getter / setter doesn't seem to be doing anything more than query/set anyways.