Updating submodule versions to fix build. (#1454)

Updated carthage submodules and xctoolchain version to fix build.

Author: noobs2ninjas

.gitmodules

@@ -1,12 +1,12 @@
-[submodule "Vendor/xctoolchain"]
-	path = Vendor/xctoolchain
-	url = https://github.com/parse-community/xctoolchain.git
-[submodule "Carthage/Checkouts/Bolts-ObjC"]
-	path = Carthage/Checkouts/Bolts-ObjC
-	url = https://github.com/BoltsFramework/Bolts-ObjC.git
 [submodule "Carthage/Checkouts/OCMock"]
 	path = Carthage/Checkouts/OCMock
 	url = https://github.com/erikdoe/OCMock.git
-[submodule "Carthage/Checkouts/facebook-ios-sdk"]
-	path = Carthage/Checkouts/facebook-ios-sdk
-	url = https://github.com/facebook/facebook-ios-sdk.git
+[submodule "Carthage/Checkouts/Bolts-ObjC"]
+	path = Carthage/Checkouts/Bolts-ObjC
+	url = https://github.com/BoltsFramework/Bolts-ObjC.git
+[submodule "Carthage/Checkouts/facebook-objc-sdk"]
+	path = Carthage/Checkouts/facebook-objc-sdk
+	url = https://github.com/facebook/facebook-objc-sdk.git
+[submodule "Vendor/xctoolchain"]
+	path = Vendor/xctoolchain
+	url = https://github.com/parse-community/xctoolchain.git

Cartfile.resolved

@@ -1,3 +1,3 @@
 github "BoltsFramework/Bolts-ObjC" "1.9.0"
 github "erikdoe/OCMock" "v3.4.3"
-github "facebook/facebook-objc-sdk" "v5.5.0"
+github "facebook/facebook-objc-sdk" "v5.6.0"