Some modifiction
Some modification
Merge branch 'master' of https://github.com/DataCanvasIO/example-modules

Conflicts:
	modules/modeling/CDH4/item2item/browsing_recommendation/test.sh
	modules/modeling/CDH4/item2item/transaction_recommendation/input.txt
	modules/modeling/CDH4/item2item/transaction_recommendation/spec.json
	modules/modeling/CDH4/item2item/transaction_recommendation/test.sh

git commit merge