remove plotting options from learners.
ENH parallel predict for SSVMs
remove plotting stuff in latent svm
fixed plotting in latent_crf example
update tests for latent_crf to use raveled features.
Fix latent svm test to work with initialization that takes features into account, not only neighbors
fix for latent_crf initialization using unraveled features
ENH don't store Ys in one-slack svm. it blows up the memory.