Merge pull request #123 from piwik/visualizationrefactoring

core/ViewDataTable.php

core/ViewDataTable/Graph.php

core/ViewDataTable/Visualization.php

core/Visualization/Config.php

core/Visualization/Request.php

plugins/CoreVisualizations/JqplotDataGenerator/Chart.php

plugins/CoreVisualizations/Visualizations/Cloud.php

plugins/CoreVisualizations/Visualizations/HtmlTable.php

...oreVisualizations/Visualizations/HtmlTable/AllColumns.php

...ins/CoreVisualizations/Visualizations/HtmlTable/Goals.php

plugins/CoreVisualizations/Visualizations/JqplotGraph.php

...ins/CoreVisualizations/Visualizations/JqplotGraph/Bar.php

...reVisualizations/Visualizations/JqplotGraph/Evolution.php

...ins/CoreVisualizations/Visualizations/JqplotGraph/Pie.php

plugins/ExampleVisualization/SimpleTable.php