Bug 313459 Problem with % when generating images in tables.
See the attached BirtProject, it has two reports. Each identical except for this difference: The image width/height is set to a %age value (50%) in one (TestImage.rptdesign) and not-set in the other (TestImageWorking.rptdesign). TestImage.rptdesign does not display the image in pdf, but works fine in html. TestImageWorking.rptdesign shows the image in both pdf and html. The %age setting seems to cause the problem in pdf format.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/ImageAreaLayout.java
if ( PropertyUtil.isInlineElement( image ) )
			{
				
				assert ( parent instanceof InlineStackingArea );
				InlineStackingArea lineParent = (InlineStackingArea) parent;
				if ( root.getAllocatedWidth( ) > parent
						.getCurrentMaxContentWidth( ) )
				{
					if ( ( innerTextInserted && !isEmptyLine )
							|| ( !innerTextInserted && !lineParent
									.isEmptyLine( ) ) )
					{
						lineParent.endLine( false );
						layout( );
					}
					else
					{
						parent.add( root );
						root.finished = true;
						parent.update( root );
						return;
					}
				}
				else