WIP - supporting 2.0.1 but not tested
    - The example project on android-store's "Amazon2.0" branch can be used to complete this work.
Added functionality to get price amount micros and currency code
Merge branch 'Amazon2.0'

* Amazon2.0:
  Added functionality to get price amount micros and currency code
  WIP - supporting 2.0.1 but not tested     - The example project on android-store's "Amazon2.0" branch can be used to complete this work.
Update README and added changelog