Merge pull request #645 from AtomicGameEngine/JME-ATOMIC-UPDATECEFSUBMODULE

Change to absolute URL on CEF3 submodule

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "Submodules/CEF"]
 	path = Submodules/CEF
-	url = ../CEF3Binaries
+	url = https://github.com/AtomicGameEngine/CEF3Binaries