* new class BarItem (is used in BarSeriesBase to store the data)
* refactoring of barseries and category axis (fixed bugs with different barwidth, only some series stacked,...)
* new property StackIndex. No several stacks can be made.
* new property categoryWidth in categorySeries to decide which space of a category should be used by the bars.
* move of render method of columnSeries and BarSeries in BarSeriesBase to avoid duplicate code
* added validItems property in barseries.
These valid items are calulated in advance avoiding problems in the series methods.
(Acess to item by index but some items might be skipped!)
Furthermore, by using valid items property at all times one can use the same items and does not need to check them each time.
* Changed existing examples to new properties
* Added new example to show the new available features.
Merge
Refactoring of BarSeries and ColumnSeries.
ColumnSeries: BarWidth property is renamed to ColumnWidth.
ColumnSeries.Items: changed to type ColumnItem
Added OxyPlot.OpenXml and OxyPlot.Pdf NuGet packages.
ExampleLibrary: Added "Train schedule" example to "Misc"
ExampleLibrary: added ODE solver examples in "Misc"
new series type "ErrorColumnSeries" implemented
new items type ErrorColumnItem implemented
example for new series added
ErrorColumnSeries: Refactoring (removed duplicate code)
ErrorColumnItem: renamed the property "ErrorValue" to "Error"
+ code cleanup
CodeGenerator: writing items of all kinds of lists
Fixed ScatterSeries bug (invisible points when binding to properties)
ScatterPoint: set Size and Value to NaN in default constructor
Added Mono for Android implementation (alpha)
BoxPlotSeries: added new properties: OutlierType, MedianPointSize, LineStyle,
ShowMedianAsDot, ShowBox
OxyPlot.Wpf.Plot: workaround for issue 9958 (clipboard does not work with transparent background)
replacing transparent background by white
Corrected code analysis warnings (CA1060, CA1063, CA1401, CA2101, CA2202)

SvgExporter: added a parameter for a text measurement IRenderContext
- can avoid native methods when using this.

PlotModel: corrected 'padding' bug when vertical axis was not defined
Added FxCop project
Added batch file to ftp upload example browser
WordDocumentReportWriter moved to OxyPlot.OpenXml namespace
WPF Examples: Moved 16 example applications into one application "WpfExamples".
This makes build much faster.
Added three examples using UserControls/DataTemplates (WpfExamples/Examples/UserControlDemo).
Updated referenced NuGet packages (Caliburn.Micro, PropertyTools)
WPF/WpfExamples: corrected DataTemplate example