Recent Developments in Lie Algebras, Groups and Representation Theory: 2009-2011 Southeastern Lie Theory Workshop Series : Combinatorial Lie Theory and Applications, October 9-11, 2009, North Carolina State University : Homological Methods in Representation Theory, May 22-24, 2010, University of Georgia : Finite and Algebraic Groups, June 1-4, 2011, University of Virginia