v2.1.7-beta

What's Changed

• Fixes an issue with the flushInterval not working properly and causing frequent 1 sec flushes if there where events waiting for retry.
• Deprecates retryInterval and maxRetryEvents options in the client configuration. Use flushInterval and maxBatchSize instead.
• Adds support for deeplink tracking with referral_application data. Please review the instructions to set it up on iOS, no changes required on Android.