Modificaciones varias

-Se modifica el menú para que haya una pantalla de cargando antes de
cargar la escena.
-Se agrega un script y canvas para mostrar un mensaje cuando la página
no fue detectada.
-Se agregan botones en pantalla para salir del juego o reiniciarlo.
-Se completan las escenas de patito feo con los modelos a utilizar.
Merge remote-tracking branch 'origin/master'

Conflicts:
	Library/CurrentLayout.dwlt
	Library/EditorUserBuildSettings.asset
	Library/ScriptAssemblies/Assembly-CSharp-Editor.dll
	Library/ScriptAssemblies/Assembly-CSharp-Editor.dll.mdb
	Library/ScriptAssemblies/Assembly-CSharp-firstpass.dll
	Library/ScriptAssemblies/Assembly-CSharp-firstpass.dll.mdb
	Library/ScriptAssemblies/Assembly-CSharp.dll
	Library/ScriptAssemblies/Assembly-CSharp.dll.mdb
	Library/ScriptAssemblies/Assembly-UnityScript-Editor-firstpass.dll
	Library/ScriptAssemblies/Assembly-UnityScript-Editor-firstpass.dll.mdb
	Library/ScriptAssemblies/Assembly-UnityScript-firstpass.dll
	Library/ScriptAssemblies/Assembly-UnityScript-firstpass.dll.mdb
	Library/ScriptAssemblies/Assembly-UnityScript.dll
	Library/ScriptAssemblies/Assembly-UnityScript.dll.mdb
	Library/assetDatabase3
	Library/expandedItems
	Library/guidmapper
	Library/metadata/03/0368f76032d073f4c84daa038dc23481
	Library/shadercompiler-1.log
	Wondertales-csharp.sln
	Wondertales.sln
	Wondertales.userprefs