Basic ALS serving manager test framework
Merge remote-tracking branch 'upstream/master'

Conflicts:
	oryx-lambda-serving/pom.xml
	oryx-ml-oryx-serving/pom.xml
Conflicts:
	oryx-lambda-serving/pom.xml
	oryx-lambda-serving/src/main/java/com/cloudera/oryx/lambda/serving/ServingLayer.java
Conflicts:
	oryx-lambda-serving/pom.xml
	oryx-lambda-serving/src/main/java/com/cloudera/oryx/lambda/serving/ServingLayer.java
	oryx-ml-oryx-serving/pom.xml
Required dependency