4.4.4

• [4.4.4]
  Add guide add IAPPromotionObserver in ios

  • Resolve #950
  • Resolve #971

• [4.4.3]

  • Bugfixes for #849.

• [4.4.2]

  • Attempt to fix #934.

• [4.4.1]

  • Upgrade packages.

• [4.4.0]

  • Update requestionSubscription on android side.
  • The flow of the code were not clean and correct.
    • Support ProrationModesAndroid enum type for handling better proration mode
  • Fixes #888
  • PR #893

• [4.3.4]

  • Fix double precision issue in java 885.

• [4.3.3]

  • Fix purchaseStateAndroid. Resolve #839.

• [4.3.1]

  • Pod file support for tvos.