Cleaning nn ui
Merge branch 'master' into nn2

Conflicts:
	src/test/java/water/Sandbox.java
NN fixes & allow other types of output layers
altered instructions for h2oWrapper R docs
Merge branch 'master' of https://github.com/0xdata/h2o
GBMGrid fixes, processing argument sets in Request2
updated get_s3_jar.sh to pull gauss branch.
sh2junit.py is a lightweight python runner (bash got too complicated) that runs an R subprocess, captures stdout/stderr, and walks over the h2o logs afterwards looking for stack traces like normal python tests. And then creates xml that jenkins should like, with pass/fail info/output.
runner_sh2junit.sh uses it like this:

myR is a sh function:
so the list of tests to run is:
   myR 'runit_RF.R'
   myR 'runit_PCA.R'
   myR 'runit_GLM.R'
   myR 'runit_GBM.R'

used inside myR function: (rest of the function is just creating the $cmd correctly)

    cmd="R -f $rScript --args $CLOUD_IP:$CLOUD_PORT"
    ./sh2junit.py -name $1 -timeout 30 -- $cmd || true
More work on streamlining GBM and GLM grid search
Merge branch 'master' of github.com:0xdata/h2o
remove xml
download readme minor edits
Merge branch 'master' of https://github.com/0xdata/h2o
git rid of print
minor edit to doc
Merge branch 'master' of github.com:0xdata/h2o
was too big!
need double quotes on the xml values
only check h2o logs in sandbox. Do an mySetup that removes the .Renviron and .Rprofile and recreates them, and rm's the local library and creates the dir again. (runs before R tests, so install happpens again)
reorganize the h2o log downloading, so it's a download and check that can be used in other situations
also say whether errors in R unit are due to exit code or h2o logs, in the xml produced