Add GroupedBy: Columns/Rows to Correlation and Covariance.

Change-Id: I7bb3b7151abda8e977cbdbec2d0c356f049d5af2
Groupedby for ANOVA and "Descriptive Statistics"

Move the functionallity to superclass, adjust UI

Change-Id: I9770206386aa6d9caaf2d832d4744ac488e3190b
New statistics function: Exponential Smoothing

Add initial implementation of exponential smoothing.

Change-Id: Id234aec6a0efece2ce8144f22359cf034256c40b
tabs to spaces

Change-Id: Iad7c051fe5ab19c4c56641788bec5c2a5dd4e6dd
Add tools to simplyfy adding formulas and cell navigation

TableFillingAndNavigationTools were added to StatisticsDialogs which
include FormulaTemplate and AddressWalkerWriter.
FormulaTemplate simplyfies creting formulas and AddressWalkerWriter
simplyfies navigating cells with relative address navigation and
adding content (formulas, values, string) to cells.

Change-Id: I32ecb4013f51bda9c8d0bf9f06b9f9dfd4da6def
Iterators for data ranges and data cells.

This is needed to make data and iteration independent from the
data orientation (either columns or rows).

Change-Id: I03d0fca939ba9b051832668d229e4961c097add6
Add statistics dialog for calculation of moving average.

Change-Id: Iaa481a2d8aff271e8a8350b707e1f444f8d36167
ui permissions

Change-Id: I56e81590327881328daf5f80e6330ba78cd8b900
Simplification and better output of statistics dialogs.

Change-Id: Ia21bb07f7721a7697807f8ee98706bd3fc136653