[boost] [Graph] Bundled properties, take 2

Good evening, I've just checked in version 2 of the "bundled properties" patch for the BGL, which allows one to stick various vertex/edge properties into a class to be stored within adjacency_list/adjacency_matrix. Accessing these properties is easier and more convenient. This patch completes support for bundled properties. Both of the major graph types are supported, bundled properties play nice with other property maps (get/put support added), and bundled properties work with graph adaptors. The documentation now strongly urges users to adopt bundled properties instead of property lists :) Doug