Is Live Reload = true the correct default?

(Standard Disclaimer: I love Ember Twiddle; Thank You for continuing to maintain it <3 )

I am not a fan of Live Reload.

- The constant flashing on the right pane is distracting and anxiety-inducing
- The user experience of your app breaking and failing to render anything at all simply because you started typing a `

...` and haven't gotten around to typing the closing `

` (or any JavaScript equivalent) is pretty brutal
- It's performance-intensive to continually reload the iframe and the entire Ember JS payload and app, so even if the flashing weren't so distracting, I'd still feel the jank as I continue to type while the app is recompiling/reloading from the background.

Possible nicer alternatives:

- Disable Live Reload by default
- When Live Reload is disabled, user can press CMD+Enter (or your favorite OS equivalent) to reload the app (JSBin does this to great success)