[DOC beta] Deprecate and Warn Handlers

[mixonic]

• Requires API documentation for Ember.Debug.registerDeprecationHandler
• Requires API documentation for Ember.Debug.registerWarnHandler
• Guides should be reviewed.
• @rwjblue it seems reasonable to add a guide for the upgrade workflow now that this is in Ember proper. However I'm not interested in blocking on that.

The 2.1 beta blog post is the best resource for this, along with the RFC and implementation PR.

[toddjordan]

I have some bandwidth amidst the North Carolina rain this weekend 🚣I'll work on it.

[rwjblue]

Awesome, thank you! Please feel free to ping me here or in slack if you have any questions...

[toddjordan]

I've got this in progress, and hope to have a PR by end of day tomorrow. I'm planning on an Ember.Debug class doc with explanations for each new function, something like this:

[rwjblue]

Sounds great!

[rwjblue]

API docs are added for the new handlers, and deprecation guides have been added for the new properties required for Ember.deprecate and friends.

I reviewed the guides repo for any usage of Ember.deprecate or Ember.warn and there were none. The Ember Inspector section talks about deprecations linking back to the deprecation guide, but I think that is still perfectly correct.

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@mixonic - We should add an issue in the guides repo for fleshing out the process of tackling deprecations.

[rwjblue]

@mixonic - I think this issue is resolved, please confirm/close if you agree.

[mixonic]

@toddjordan Thanks so much for the hand this weekend :-) I really, really appreciate you having our back.

[toddjordan]

Happy to help 👍