moved filtering of constant columns in glmva one layer in so it can not be avoided by caller.
Merge branch 'master' of github.com:0xdata/h2o
Fixed bug in GLMVA validation. Adapted model needs to get cloned in each map as it has internal state.
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o