Bug 53565 Improve manual builds
Entering to track improvments to the manual (i.e. non-automatic) builds. We propose to make the build story more useful by providing "targeted builds" which have the flavor of make (or Ant) builds where the user says what projects they want to end up with in a "built" state and letting the system figure out what set of prerequisite projects need to be taken into account. By allowing the user to tell us which project(s) are important to them, we give them a powerful tool to control how much work gets done when they say "build".
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/ChooseWorkspaceData.java
/**
	 * The default max length of the recent workspace mru list.  The values
	 * stored in xml (both the max-length parameter and actual size of the
	 * list) will supersede this value. 
	 */
	private static final int RECENT_MAX_LENGTH = 5;
	/**
	 * The directory within the config area that will be used for the
	 * receiver's persisted data.
	 */
	private static final String PERS_FOLDER = "org.eclipse.ui.ide"; 
	
	/**
	 * The name of the file within the config area that will be used for
	 * the recever's persisted data.
	 * @see PERS_FOLDER
	 */
	private static final String PERS_FILENAME = "recentWorkspaces.xml"; 
	private static final int PERS_ENCODING_VERSION = 1;
	private String initialDefault;
	private String selection;
	private String[] recentWorkspaces;
	
	private static interface XML {