Bug 228760 [Markers] Column orientation not stored when markers views are closed
If we re-order view columns by drag and drop or add/remove them using the preferences the values we ended up with are not restored on restart.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/CachedMarkerBuilder.java
return IDEWorkbenchPlugin.getDefault().getBundle().getState() == Bundle.ACTIVE;
			}
		};
		markerProcessJob.setSystem(true);
	}
	/**
	 * Disable all of the filters in the receiver.
	 */
	void disableAllFilters() {
		Collection allFilters = getEnabledFilters();
		Iterator enabled = allFilters.iterator();
		while (enabled.hasNext()) {
			MarkerFieldFilterGroup group = (MarkerFieldFilterGroup) enabled
					.next();
			group.setEnabled(false);
		}
		allFilters.clear();
		writeFiltersPreference();
		scheduleMarkerUpdate();
	}
	/**
	 * Dispose any listeners in the receiver.
	 */
	void dispose() {
		ResourcesPlugin.getWorkspace().removeResourceChangeListener(
				resourceListener);
		IDEWorkbenchPlugin.getDefault().getPreferenceStore()
				.removePropertyChangeListener(preferenceListener);
	}
	/**