dual_problem still failing when atom has a quadratic term -- probably a bug in smooth_conjugate
found bug in _work_out_conjugate
added missing prox maps for block norms, block_tests passing
svd tests still failing, making latex repr better
making atom test directory
renaming in mixed_lasso
check_subgradient method
latexify fix -- linear still shows up as None
cleaning up group_lasso, still taking bad steps in dual
group_lasso tests still failing....