Facebook SDK 6.2+ & Cleaned Repo

Features

• iOS & Android: Update the Facebook SDK to 6.2+ (Facebook SDK changelog: Android, iOS)

Breaking change

• Facebook SDK 6 has removed support for the share_open_graph share method

Docs

• Tests: Added instructions for running the plugin's test suite in CONTRIBUTING

Changes for Devs

• Changed plugin name to cordova-plugin-facebook-connect
• Removed committed libraries from repo history resulting in:
  • repo size decreasing from 500 MB to less than 1 MB
  • previous version tags have been lost
  • older versions of the plugin will no longer work
    • versions from 2019 are expected to work (maybe 2018 as well)