Upgrading aws-java-sdk library to 1.7.5
Clear compiler warning
!!BROKEN!! WIP converting to dynamodbv2
!!BROKEN!! WIP converting to dynamodbv2
!!BROKEN!! WIP converting to dynamodbv2
!!BROKEN!! WIP converting to dynamodbv2
WIP BROKEN
First working version passing tests
Merge missing commit (discarded changes from it)
Merge branch 'origin/Upgrade_2_dynamov2'