PDIO-187 Add version information to SystemInfo
Bump to 0.4.3-SNAPSHOT
PDIO-185 Initial version of software manager's update check component
add validation db in developement config file to fix run time err
PDIO-184 Backup and restore routines for Algos
PDIO-188 #comment change user and item API to new format
PDIO-188 #comment add unified u2iActions API
PDIO-184 Backup and restore routines for AlgoInfos, Engines, and EngineInfos
PDIO-184 Backup and restore routines for all commons settings
PDIO-188 #comment take out attribute ct in get user and get item response
PDIO-184 Tests for all commons settings backup and restore routines
PDIO-189 #comment flatten items/users custom attributes and add prefix "ca_" when store into mongo
PDIO-189 #comment change u2iaction action field to string. remove evalid from u2iaction.
separate like and dislike action by name (instead of using v field).
PDIO-184 Add Common base class
PDIO-184 Backup utility
PDIO-190 #comment change action field to string and separate like and dislike actions
PDIO-188 #comment add prefix pio_ for itemRecTopN API predefined attributes
PDIO-184 Add upsert to all update methods
PDIO-188 #comment rename pio_tiid to pio_iid
PDIO-184 Add missing upsert