Merge pull request #128 from SupunS/master

Model build json modified
model service changes
Merge pull request #129 from lochana/master

model service changes
confusion matrix added
Merge pull request #130 from lochana/master

confusion matrix added
Added osgi dependencies of spark orbit at ML feature level
Merge remote-tracking branch 'upstream/master'

Conflicts:
	modules/components/org.wso2.carbon.ml.model/src/main/java/org/wso2/carbon/ml/model/ModelService.java
Merge pull request #131 from lasanthafdo/master

Adding OSGi dependencies of spark orbit at ML feature level
model service changes
roc curve is added
Merge branch 'master' of https://github.com/upul/product-ml
model service update
Merge pull request #133 from lochana/master

model service changes