Change boost_relevancy behaviour to be more usefully chainable.
Change boost_relevancy behaviour to be more usefully chainable.

rlskoeser/sunburnt,qmssof/sunburnt,anmar/sunburnt,pixbuffer/sunburnt-spatial,pixbuffer/sunburnt-spatial,tow/sunburnt,anmar/sunburnt,rlskoeser/sunburnt