New 0.8.
Add 0.8 features.
PIOTEAM-41 remove apiversion.
PIOTEAM-41. $delete actions
PIOTEAM-41 $delete
PIOTEAM-41, remove tags
PIOTEAM-41 remove creationTime.
PIOTEAM-41 eventtime.
PIOTEAM-41 yahoo stock import example.
PIOTEAM-41 itemrank-quick-start
Add status check in itemrank demo.
PIOTEAM-41 movielens