Bug 37197 Basepath for relative pathes in JAR-exporter
The basepath for the JAR-exporter is the eclipse-install-directory. I prefer it to be the root of the project (the description is saved in), so that relative pathes end inside the project. Now: <jardesc> <jar path="workspace/projectdir/jar.jar"/> Desired: <jardesc> <jar path="jar.jar"/> Reason: To make the jardesc-files portable for shared projects
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/jarpackager/JarPackageData.java
}
	/**
	 * Set the JAR file location.
	 * 
	 * @param jarLocation a path denoting the location of the JAR file
	 */
	public void setJarLocation(IPath jarLocation) {
		fJarLocation= jarLocation;
	}
	/**
	 * Tells whether the manifest file must be generated.
	 * 
	 * @return <code>true</code> if the manifest has to be generated
	 */
	public boolean isManifestGenerated() {
		return fGenerateManifest;
	}
	
	/**
	 * Set whether a manifest must be generated or not.
	 * 
	 * @param state the new state
	 */
	public void setGenerateManifest(boolean state) {
		fGenerateManifest= state;
	}
	
	/**
	 * Tells whether the manifest file must be saved to the 
	 * specified file during the export operation.