Bug 152828 Add the projectFolder property on module
When user doesn't set the resource folder path in designer, there should be a default working path for Birt to manage the report design and find the related resources. A new property should be added on Module: name: projectFolder type:URL This property only can be given from the open design method from session but should not be set after the module initialized. Concern about the backward compatiblity issue, a new method will be added. Open design with a config argument.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/SessionHandle.java
}
	}
	/**
	 * Closes all open designs and libraires.
	 * 
	 * @param save
	 *            <code>true</code> if designs are to be saved before closing
	 * @throws IOException
	 *             if a save error occurs
	 */
	public void closeAll( boolean save ) throws IOException
	{
		Iterator iter = session.getModuleIterator( );
		while ( iter.hasNext( ) )
		{
			Module module = (Module) iter.next( );
			ModuleHandle handle = (ModuleHandle) module.getHandle( module );
			if ( save && handle.needsSave( ) )
				handle.save( );
			handle.close( );
		}
	}
	/**
	 * Sets the units to be used by the application. These units are independent
	 * of those set for the design. The application and design can use the same
	 * units, or different units. The application units are those used when
	 * getting and setting dimension properties using double (float) values. The
	 * possible values are defined in <code>DesignChoiceConstants</code> and
	 * can be one of:
	 *