Launcher does not select last used profile by default

The launcher does not update the lastUsed attribute in the launcher_profiles.json file, so the default profile is not the previously used profile.

 

Steps to reproduce:

1. Select a profile that is not selected by default.
2. Load up Minecraft.
3. Quit Minecraft.
4. Re-open the launcher.

 

The default profile will not be the profile that you previous launched.