initialize let helper via vendor file

[taras]

• [x] Created vendor file
• [x] Moved let registration to -private/keyword
• [x] Updated integartion tests to remove initializer
• [x] Figure out why ember-let is not available when vendor is being called

Closes: #11

[rwjblue]

Yeah, I think we should actually move the full implementation to vendor. We'd have to write it in ES5, but the whole code path is basically < 100 lines so it seems easier...

[taras]

Ok, will do. Thank you!

Taras Mankovski @tarasm

On Thu, Sep 1, 2016 at 11:59 AM +0530, "Robert Jackson" notifications@github.com wrote:

Yeah, I think we should actually move the full implementation to vendor. We'd have to write it in ES5, but the whole code path is basically < 100 lines so it seems easier...

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[mmun]

This looks good to me.

[taras]

@cowboyd this should be good to go

[taras]

@rwjblue Glimmer supporting helper is more complex than previous. I had to copy and paste some babel.js transpiled code. Can you please take a look and let me know if this looks alright?

[rwjblue]

I think the plain ES5 looks better (https://github.com/thefrontside/ember-let/pull/13#discussion_r77357218), lets use that instead of babel output.

[taras]

@rwjblue I agree. I forgot how to ES5 :)

[taras]

@Robdel12 @cowboyd this is ready go