Added test suite to run for diagrams.
Dummy implementation to run tests with Diagrams backend.
Added diagrams-core to the dependencies. This is needed for the custom transformations.
Added code to the diagrams backend to create custom transformations from Matrices.
The Geometry function "rectPath" no actually creates a path instead of a point list.
Diagrams backend now renders lines in paths correctly.
Merge pull request #1 from timbod7/abstract-drawing

Simplify abstract-drawing backend
Trying to get arcs work correctly.
Merge branch 'master' of github.com:jbracker/haskell-chart
Fixed rendering differences in Bar plots.
Fixed alignment issues with sparkline diagrams.
Stroke and fill for point list now do not apply alignments anymore. This was inconsistent with the rest of the API.
Fixed the usage of fillPointPath and strokePointPath in charts.
Fixed tests to work with the new semantic.
Renamed alignc and alignp to fit the naming scheme of all other alignment related utilities.
Removed fillClip from the public API.
Adjusted drawing tests to the missing fillClip function.
Removed fillClip from the backend code.
Removed fillClip from the cairo backend and fixed it by that.
Fixed diagrams backend to work with the new backend code.