Update iOS to version 1.6.0
Added `willShowInteraction` Forge binding method for  `willShowInteractionForEvent`.
Now using a single `engage` method rather than overloading.
Fixes for setting tint color from module config.
Merge branch 'android' into next
Update module version, android artifacts.
Update demo app with working engage method. Add back in methods accidentally reverted in API.java.
Update automated.js to uncomment out majority of tests. Run ForgeInspector to verify tests pass.
Update integration instructions
Merge branch 'master' into next
Fix Android extendedData.