Added support for gradle

Gradle support added
Firebase performance support added

Add logActivationEvent

Add a new logActivationEvent function
This ensures the event will be sent to firebase only after activateFetched is complete.

Supports suggested events for ios

Merge pull request #9 from hashcube/ios-suggested-events

Ios suggested events

Firebase support for Amazon

This is for preventing an error in kindle when google play services are called
Remove unnecessary JAR file in firebase

Firebase suggested events for game

Merge pull request #7 from hashcube/game-events

Game events

Added Missing jar

It was throwing exception class tasks not found.

app_open events added

Merge pull request #4 from hashcube/app-open-event

added app_open event on app entering foreground