Removed error which caused plotting to crash.
Changes to make widgets package work with Diamond version of xygraph.
Added ImageData override.
Fix for intensity scale.
Added more info to tick's string representation
Made horizontal ticks a little denser
Fixed minor ticks for reversed axes
Fixed reversed horizontal axis labelling
Improved tick factory by capturing many corner cases and added many more unit tests
Allowed tick labels to be missing from end of colour map
Added ability to be notified of mouse events without removing old
listeners.
Added ability for PlotArea to notify alternative mouse listeners before
the zoom tool is activated.
Fixed NPE in scales
Fixed more in linear scale
Added test
Added a method to set "custom" axis labelling
Fixed compilation errors
Fixed logic of index based label format and replaced some tests
Removed redundant test
Fixed reversed axes