* Add test_spec for FCM
* FIRMessagingRemoteNotificationsProxyTest - don't use OCMPartialMock([UIApplication sharedApplication]) to avoid crashing tests on iOS 8 (#3094)
* Use bridged __weak reference instead CFRetain/CFRelease
* Use SecKeyRef instead of FIRInstanceIDKeyPair for the memory management test
* Use SecKeyGeneratePair instead of SecKeyCreateRandomKey available since iOS 10 only
* FIRInstanceIDKeyPairStoreTest wait until all keychain operations finished before finishing a test
* FIRInstanceIDTokenManagerTest: cleanup in tearDown; fix expectation to produce an error nor a crash.
* Use properties instead of ivars FIRInstanceIDTokenManagerTest
* FIRInstanceIDTokenManager fix OCMPartialMock() usage.
* Update versions for Release 6.1.0
* Release 6.1.0 - cherry pick of #3007 (#3011)
* 6.1.0 manifest updated. FirebaseInAppMessaging bumped to 0.14.1
* Early return from sending analytics events in instance ID is nil (#3007)
* FIRInstanceIDKeyPairStore fix SecKeyRef memory management issue
* [WIP] FIRInstanceIDKeyPairStore - perform operations in the order they were scheduled
* Revert "[WIP] FIRInstanceIDKeyPairStore - perform operations in the order they were scheduled"
This reverts commit 7ff7b51236.
* FIRInstanceIDKeyPairStore - schedule updating public and private keys at once (not from a callback) to avoid modifications of keychain in between. Update `self.keyPair` before updating keychain for all cases.
* Chengelog
* Don't use dispatch_group, rely on `FIRInstanceIDKeychain` serialized implementation instead
* Update versions for Release 6.0.0
* Update FirebaseSDKs.textproto with new fields. (#2818) (#2834)
* Update FirebaseSDKs.textproto with new fields.
* Update message about strip_32bits flag.
* GULAppDelegateSwizzler - proxy APNS methods separately (#2835) (#2858)
* Cherry-picks for M47 RC5 (#2882)
* fix race condition checkin is deleted before writing during app start (#2860)
* GoogleUtilities min ios version from 6 to 8 (#2876)
* Put secret and oauth credentials into the private headers for now. (#2916) (#2919)
* Add missing Messaging weak_framework dep (#2921) (#2930)
* Remove FIRAnalyticsConfiguration from Public header.
We haven't removed it entirely yet because we need to make changes
within Analytics to verify that the global data collection switch is
still honored and tested well. This can wait until after the breaking
change because the header and code will be internal after this change.
* Fixed incomplete comment.
* Remove self importing header.
* Implement oauth secret token in headful-lite. This is useful for Twitter sign in.
* Deprecate TwitterAuth{Provider,Credential}. OAuth sign in flow is now the recommended way to sign in with Twitter.
* Add update OAuth credential to AuthDataResult. Developer can access the secret token from that.
Paul Beusterien