WIP PCA in FluidVecs
WIP PCA and PCA scoring on FluidVecs
Renaming a few internal methods, no behavioral changes
WIP PCA scoring functions with ValueArray PCA only
Automatically flip row to NA in PCA score if input contains NA
Deal with NAs in PCA scoring
fix cols init bug
Merge branch 'master' of https://github.com/0xdata/h2o into anqi-pca2

Conflicts:
	R/h2oRClient-package/R/Algorithms.R
	src/main/java/water/api/RequestServer.java
Merge branch 'anqi-pca2' of https://github.com/0xdata/h2o into anqi-pca2

Conflicts:
	src/main/java/hex/PCAScoreTask.java
Explicit use of put-schema during import_parse.
not sure how I'm supposed to get the model in glm2
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Missing import h2o_hosts.
more memory/run, gather ICE logs too, other misc. features
Merge branch 'master' of https://github.com/0xdata/h2o
increase sampling time
update readme
update for R users
Merge branch 'master' into summary2