Bug 45638 [preferences] overwrite mode setting
Needs to be moved to Java>Editor>Typing.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
* <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>
	 *
	 * @since 3.0
	 */	
	public final static String FORMATTER_COMMENT_CLEARBLANKLINES= "comment_clear_blank_lines"; 
	/**
	 * A named preference that controls the line length of comments.
	 * <p>
	 * Value is of type <code>Integer</code>. The value must be at least 4 for reasonable formatting.
	 * </p>
	 *
	 * @since 3.0
	 */	
	public final static String FORMATTER_COMMENT_LINELENGTH= "comment_line_length"; 
	/**
	 * A named preference that controls whether html tags are formatted.
	 * <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>
	 *
	 * @since 3.0
	 */	
	public final static String FORMATTER_COMMENT_FORMATHTML= "comment_format_html"; 
	/**
	 * A named preference that controls if the Java code assist gets auto activated.
	 * <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>