update license
Merge branch 'master' of ssh://github.com/tqchen/xgboost
update license
fix nboosters
Merge branch 'master' of https://github.com/tqchen/xgboost
add in reg.conf for configuration demo
add toy data
tab eliminated
changes to reg booster
pass simple test
add mushroom
add mushroom classification
finish mushroom
fix mushroom
change input data structure
modify tree so that training is standalone
modify tree so that training is standalone
add pathdump
add dump2json
start add coltree maker