[FEATURE ember-routing-fire-activate-deactivate-events] Fire `activate` and `deactivate` events on `Ember.Route`

Additionally to the existing `activate` and `deactivate` hooks on
`Ember.Route`, this feature adds the firing of events with the same name
on the route.

This closes #4923
[BUGFIX] location: 'history' no longer blows away location.hash. Fixes #4098
[BUGFIX beta] fixing broken computed.sort semantics
Merge pull request #9272 from jayphelps/history-location-keeps-hash

[BUGFIX] location: 'history' no longer blows away location.hash
Post alpha version bump.

This gets the commit sha's back in Ember.VERSION.
Ensure Ember.Handlebars.get is exported.

It was brought back earlier, but not re-exported properly.
Merge pull request #9362 from rwjblue/export-handlebars-get

Ensure Ember.Handlebars.get is exported.
Add component invocation from Handlebars tests.
blockHelperMissing is only called without hash args.
Merge pull request #9364 from rwjblue/handlebars-component-with-properties

Fix Block Components with Properties
Merge pull request #5569 from pangratz/add_activate_deactivate_events_to_route

[FEATURE ember-routing-fire-activate-deactivate-events] Fire `activate` and `deactivate` events on `Ember.Route`
Merge pull request #9356 from ef4/fix-9278

[BUGFIX beta] fixing broken computed.sort semantics
Pull out only the default export since it's the only thing we need.
Don't double-declare K.
Use `computed` from the computed module, not from the Ember object.

In my builds `Ember.computed` was not yet set at this point.
Merge pull request #9368 from eventualbuddha/es6-fixes

ES6 fixes
Make computed.sort generate an answer immediately

This is a followup to pull #9356 that gives nicer timing. It extends the
arrayComputed protocol with a `flushedChanges` callback so that
implementations like `computed.sort` can confidently do batched
operations without waiting a whole run loop.
[DOC beta] Fix typo, change 'they' to just 'the', per #9373
Merge pull request #9375 from tehcurtis/9373_fix_minor_text_support_typo

[DOC beta] Fix typo, change 'they' to just 'the', per #9373
Merge pull request #9372 from ef4/sort-timing

Make computed.sort generate an answer immediately