Update component versions for Firebase 4.7.0 (#497)

Firebase/Core/FIROptions.m

@@ -42,7 +42,7 @@ NSString *const kFIRIsSignInEnabled = @"IS_SIGNIN_ENABLED";
 NSString *const kFIRLibraryVersionID =
     @"4"     // Major version (one or more digits)
     @"00"    // Minor version (exactly 2 digits)
-    @"11"    // Build number (exactly 2 digits)
+    @"12"    // Build number (exactly 2 digits)
     @"000";  // Fixed "000"
 // Plist file name.
 NSString *const kServiceInfoFileName = @"GoogleService-Info";

FirebaseAuth.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseAuth'
-  s.version          = '4.3.2'
+  s.version          = '4.4.0'
   s.summary          = 'The official iOS client for Firebase Authentication'
 
   s.description      = <<-DESC

FirebaseCore.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseCore'
-  s.version          = '4.0.11'
+  s.version          = '4.0.12'
   s.summary          = 'Firebase Core for iOS'
 
   s.description      = <<-DESC

FirebaseDatabase.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseDatabase'
-  s.version          = '4.0.4'
+  s.version          = '4.1.2'
   s.summary          = 'Firebase Open Source Libraries for iOS.'
 
   s.description      = <<-DESC

FirebaseFirestore.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'FirebaseFirestore'
-  s.version          = '0.9.2'
+  s.version          = '0.9.3'
   s.summary          = 'Google Cloud Firestore for iOS'
 
   s.description      = <<-DESC

FirebaseMessaging.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseMessaging'
-  s.version          = '2.0.6'
+  s.version          = '2.0.7'
   s.summary          = 'Firebase Messaging for iOS'
 
   s.description      = <<-DESC

FirebaseStorage.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseStorage'
-  s.version          = '2.0.2'
+  s.version          = '2.1.0'
   s.summary          = 'Firebase Storage for iOS'
 
   s.description      = <<-DESC