Update Starter Theme for 2.x

[jarednova]

• Ensure calls to all Timber classes are namespaced
• Ensure there are no deprecation warnings from any methods/classes called

[marciojc]

Hi,
I did some improves, timber/starter-theme#72.

[jarednova]

Awesome, thanks @marciojc ! I'll check them out in the next few days

[jarednova]

Thanks again @marciojc — I've now merged your changes into the starter theme. I'm going to leave this issue open as we work to get the starter theme to use the new 2.x syntax and classes

[marciojc]

Thanks @jarednova. I will continue working on updating the starter theme when possible.

[gchtr]

With the updates in timber/starter-theme#142, I think we can close this.