fixed memory leak
cleanup
Merge pull request #219 from pmineiro/mmftweak

cleanup
minor tweaks
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
pulled
put makefile back
Merge pull request #220 from hal3/master

fixed memory leaks
Merge branch 'new_new_upstream_master' into nnfixes