Allow to change the legend text of series in a DataTable

[abeham]

Title was "Setting the configuration of the DataTableHistoryView fails for the QualityDistributionAnalyzer", but this change is atually just a minor part of what this ticket has become. I added a display name property and allowed to change the name of the series in a linechart.

[abeham]

r6610

• Added a DisplayName property to the DataRowVisualProperties
• Changed the QualityDistributionAnalyzer to change the display name instead of the row name
• Adapted the view to configure the chart and series properties

[abeham]

r6628

• merged to trunk

[ascheibe]

Review comments:

• If I change the Display Name of e.g. Minimum Solution Similarity in QAP, I get asked if I want to change it as well for Average Solution Similarity and Maximum Solution similarity for all frames. I think it should only ask for Minimum Solution Similarity, because I would have changed the others if I wanted that. Also I don't think that anybody wants to have the same name for all series.
• If I change the Display Name of Minimum Solution Similarity again, it doesn't ask me if I want to do it for all frames or only this one frame. Is there a reason for this or is this a bug?
• And another thing that I want to mention but has nothing to do with this ticket: I think the text of the "Ok" button should not be bold and it should be capitalized. We have it this way in the "Create Experiment", "Change MainForm Type" or "Set Username / Password" dialog.

[abeham]

r7216

• Made display name change transparent
• Changed ok button

[ascheibe]

Works like a charm, thanks!