By Bonnie Stiernberg These are trying times we’re living in, and through all the uncertainty and chaos, it can be comforting to cling to the familiar. The world may be falling apart, but we can still count on the fact that the sky is still blue, the grass is still green, and the Gallagher brothers are still caught up in an endless feud. The latest example of the former Oasis bandmates/current mortal enemies’ contempt for one another comes in the form of a recent radio interview by Liam Gallagher to promote his forthcoming solo performance at Knebworth. As The Independent reports, the gig is sl…