halfway through reduction restructure
Merge branch 'master' of github.com:JohnLangford/vowpal_wabbit
made snapshotting much faster, removed unnecessary computing for train/test
put makefile back
Merge pull request #175 from hal3/master

fast snapshotting, removed unnecssary computation
Merge branch 'master' of github.com:JohnLangford/vowpal_wabbit
new version of learner.h for easier nonuniform reduction
further speedupts
reductions now nonuniform
eliminated base from many places
working on neighbor features
remove audit from offset
incorporated john's changes
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
cleaned up predict interface for non-ldf
Merge pull request #177 from hal3/master

speedups and cleanups for imperative searn
finished neighbor features (minus auditing support), cleaned up single line csoaa_ldf
fixed makefile
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
Merge pull request #178 from hal3/master

finished neighbor features (minus auditing support), cleaned up singleline csoaa_ldf