Bug 23316 preference to turn off automagic-closing-brackets
there should be a way to turn it off - i'm not used to it and it gets in my way a bit
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
* @see ISourceViewer#showAnnotations(boolean)
		 */
		public void showAnnotations(boolean show) {
			fCachedIsVerticalRulerVisible= (show && fCachedVerticalRuler != null);
			super.showAnnotations(show);
		}
		
		public IContentAssistant getContentAssistant() {
			return fContentAssistant;
		}
		
		/*
		 * @see ITextOperationTarget#doOperation(int)
		 */
		public void doOperation(int operation) {
		
			if (getTextWidget() == null)
				return;
			
			switch (operation) {
				case CONTENTASSIST_PROPOSALS:
					String msg= fContentAssistant.showPossibleCompletions();
					setStatusLineErrorMessage(msg);
					return;
				case UNDO:
					fIgnoreTextConverters= true;
					break;
				case REDO:
					fIgnoreTextConverters= true;
					break;