Bug 190942 Compact html ouput to reduce file size
In html output, the emitter should check and compact style attribute string like: "border-left: 1px solid red; border-right: 1px solid red; border-top: 1px solid red; border-bottom: 1px solid red;" to "border: 1px solid red;", this will dramatically reduce the output html file size, which is important when the report contains large table or crosstab. This is also true for padding, margin and other style properties.
engine/org.eclipse.birt.report.engine.emitter.html/src/org/eclipse/birt/report/engine/emitter/html/HTMLEmitter.java
*            The style of an element.
	 * @param height
	 *            The height property.
	 * @param width
	 *            The width property.
	 * @param styleBuffer
	 *            The <code>StringBuffer</code> object that returns 'style'
	 *            content.
	 * @return A <code>boolean</code> value indicating 'Can-Shrink' property
	 *         is set to <code>true</code> or not.
	 */
	protected boolean handleShrink( int type, IStyle style,
			DimensionType height, DimensionType width, StringBuffer styleBuffer )
	{
		boolean canShrink = style != null
				&& "true".equalsIgnoreCase( style.getCanShrink( ) ); 
		if ( ( type & HTMLEmitterUtil.DISPLAY_BLOCK ) > 0 )
		{
			buildSize( styleBuffer, HTMLTags.ATTR_WIDTH, width );
			if ( !canShrink )
			{
				buildSize( styleBuffer, HTMLTags.ATTR_MIN_HEIGHT, height );
			}
		}
		else if ( ( type & HTMLEmitterUtil.DISPLAY_INLINE ) > 0 )
		{
			buildSize( styleBuffer, HTMLTags.ATTR_HEIGHT, height );
			if ( !canShrink )
			{
				buildSize( styleBuffer, HTMLTags.ATTR_MIN_WIDTH, width );