fix of the ValueStringComparison in case there were skip characters.
Updated tests, docs, and demo to reflect RF changes
R support 2.14...
this seems to be the minimal jars from /opt/mapr/lib that we need in our
build to work with mapr3.0.1. I also use
-Djava.library.path=/opt/mapr/lib at runtime, on do it on a system that
had mapr 3.0.1 installed (hence /opt/mapr/lib). Apparently the code also
looks for /opt/mapr/conf at runtime (the cluster definition..probably
mapr-clusters.conf)

If we compare against what we packaged for mapr2.1.3, you can see we
apparently no longer need commons-logging and log4j (I remember it
failing without those for mapr2.1.3). We need maprrfs* and zookeeper*
from /opt/mapr/lib. The hadoop-0.20.2-dev-core.jar is needed but
apparently it's not distributed in /opt/mapr/lib. So I took it from our
current libs

We seem to be redundantly packaging hadoop-0.20.2-dev-core.jar in a
number of places. (and zookeeper?) the maprfs* jar here is 27MB.

mapr2.1.3:
commons-logging-1.1.1.jar
hadoop-0.20.2-dev-core.jar
log4j-1.2.15.jar
maprfs-0.20.2-2.1.3.jar
maprfs-jni-0.20.2-2.1.3.jar
zookeeper-3.3.6.jar

mapr3.0.1:
hadoop-0.20.2-dev-core.jar
maprfs-1.0.3-mapr-3.0.1.jar
zookeeper-3.3.6.jar
Merge https://github.com/0xdata/h2o
Tom locked master, and I would rather merge in the changes I made to R docs last night than not.

Merge branch 'master' of https://github.com/0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of https://github.com/0xdata/h2o
Merge https://github.com/0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Change GBM tests to use response instead of vresponse.
Change vresponse to response.
Merge branch 'master' of github.com:0xdata/h2o
Missed null check
Added a very small GBM covtype which can run fast.
Merge branch 'master' of github.com:0xdata/h2o
Added  validation support to GLM2. Also fixed json output.
Merge branch 'master' of github.com:0xdata/h2o
summary & tail R units