#21 Patch for bug 1002248

[Philippe Mouawad]

This patch adds a feature to the rendering servlet:
It removes the Chart from Storage if the HTTP request
contains a parameter.

This patch contains modification of the classes that
implement de.laures.cewolf.Storage interface to add
this method:
/**
* Removes the image from the storage
* @param imgId Image id
* @param request Servlet request
* @return Image id
* @throws CewolfException
*/
public String removeChartImage(String imgId,
HttpServletRequest request)
throws CewolfException;

It also modifies the tags img and legend to add a new
attribute
removeAfterRender to notify the rendering servlet to
remove the chart from Storage after rendering.
Finally, It contains the modification of CewolfRender
to remove the Chart from storage if the request
contains the HTTP parameter removeAfterRender.

[Philippe Mouawad]

Zip with modified files

[Brian Fox]

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Merged with 0.12 and committed to brnach "pr1002248".

[SourceForge Robot]

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