Still cannot run older version of ember.js

[Gaurav0]

See https://ember-twiddle-gaurav.herokuapp.com/e99546e0831d6d0251fc

Possibly loading / using the wrong version of ember-template-compiler?

[rwjblue]

We need to add the template compiler to twiddle.json. We can use the default one from https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.5/ember-template-compiler.js

[Gaurav0]

@rwjblue Thanks for your help. The only issues now is that

1. we no longer precompile templates
2. This breaks existing twiddles

Breaking because existing twiddle.json's do not specify an external ember-template-compiler.

[Gaurav0]

Fixed by #83