Delete dead files
Rework the Model interface

Add a new water.Model class.  Make GLMModel and hex.rf.Model inherit
from water.Model, add KMeansModel, rename hex.rf.Model as RFModel,
rename hex.KMeans.Res as hex.KMeans.KMeansModel.
water.Model supports a notion of data-compatibility with datasets
(a set of required columns for the model), plus scoring on the model.
The model->dataset column mapping will be unique to each dataset being
scored, and thus changes with the dataset.  This mapping then appears
in the inner loop of all model scoring paths.
The model->dataset column mapping  subsumes "ignore column" features
which had been irregularly implemented in different model builders.
"ignores" has been removed with this patch, and this impacts RF
substantially - with this patch the model records the columns actually
in-use during building and the RF column-features match 1-to-1 with
the model.  i.e., the ignored columns are already removed.  Many RF
fields are redundant with RFModel, and have been removed.

The water.Model supports a generic notion of scoring on models, and
all models (GLM, RF & KMeans) can be scored with a URL/JSON interface.
The api GUI for Scoring allows entering generic row data.

Replace rf.IllegalDataException with java.lang.IllegalArgumentException
Use ValueArray.rpc() instead of manual row-math.
Normalize KMeans data.  Add API interfaces for KMeans.
Increase adding of 'rho' in LSMSolver up to 40 iterations from 20.
Fix a race bug with ParseProgress
Fix CR/LF endings
Merge branch 'master' of github.com:0xdata/h2o

Conflicts:
	src/hex/GLMSolver.java
	src/hex/rf/Confusion.java
	src/hex/rf/DRF.java
	src/hex/rf/RFModel.java
	src/water/api/Inspect.java
	src/water/api/RequestArguments.java
	test-src/test/KMeansTest.java
Do not normalize the response column
Handle JSON'izing an empty name
Make it RFModel clonable instead of cloning it.
More carefully distinguish data cols from model cols

More carefully pick data columns or model columns as appropriate.
Always the class is the last model column.
Merge branch 'master' of github.com:0xdata/h2o
Fix NPE for GLMGrid