flatten example
Merge github.com:JohnLangford/vowpal_wabbit
flatten vw example
Merge github.com:JohnLangford/vowpal_wabbit
Added instance weighting to searn sequence task.
Merge pull request #144 from arielf/master

New demo: random-noise: shows how well vowpal-wabbit can tell signal and noise apart
flatten example
Support searn through the library interface.
make gd and bfgs work after moving loss to simple_label
make --oaa work
make ect work and fix bug when --adaptive is off
work for csoaa and bug fix
make wap work
make cb work
Merge pull request #145 from eHarmony/save_best

Save best and holdout validation for --oaa, etc
Update searn so that finish_example is only called when used with drive.
Merge pull request #146 from akhudek/master

Searn example weighting and library interface
fixed audit for gd_mf
fix reference
flatten-example continued