Merge pull request #122 from krivera-pentaho/dev

[ANALYZER-2257] -- Changed menu ordinal for sunburst to appear directly ...
[ANALYZER-2257] Full Null support.
Merge pull request #123 from webdetails/master

[ANALYZER-2257] Full Null support.
[ANALYZER-2257] Fixed tooltips.
* (Non-leaf) Inner slices don't show members that are only fixed in outer slices.
* The size-by value that is shown for inner slices is now the sum of that of all its children.
Merge pull request #124 from webdetails/master

[ANALYZER-2257] Fixed tooltips.
[ANALYZER-2257] -- Added extension point for text style of labels for sunburst