ENH: Updated default value of ADMM's tau to recommended value.
DOC: Updated pages.
Merge pull request #2 from duchesnay/master

ENH: Changes to CONESTA's stopping criterion and other minor changes.
STYLE: Cleanup and comments.
WIP: Updates to multiblock algorithms.
BUG: Fixed the multiblock FISTA algorithm.
REFAC: Minor update to line search API.
PERF: Minor speed-ups to RGCCAConstraint.proj.
BUG: Multiblock FISTA did not do min_iter iterations.
TEST: docstring example use np.allclose to avoid some failure during test
Merge branch 'master' of github.com:neurospin/pylearn-parsimony
ENH: CONESTA use derived_eps = max(eps, self.eps) - mu * gM instead of derived_eps = eps - mu * gM