Documents `{{link-to "route" someId}}` behavior
Update link_to.js

add description for `disabled` and `disabledWhen` properties for `link-to` handlebar helper.
Removes long-deprecated getPath/setPath
Set source object as context for callbacks in computed array property
Merge pull request #3366 from ssured/patch-1

Set source object as context for callbacks in computed array property
Merge pull request #3343 from trek/document-link-to-with-only-id

Documents `{{link-to "route" someId}}` behavior
Query params implementation
Use real words and use existing US English standard.
Merge pull request #3369 from eventualbuddha/infavour-to-in-favor

Use real words and use existing US English standard.
Merge pull request #3182 from alexspeller/query-params-squashed

Initial QueryParams implementation
Fixed a typo in link-to documentation
Merge pull request #3375 from graup/typo

Fixed a typo in link-to documentation
corrected mistake in Em.computed.equal docs
Merge pull request #3378 from GavinJoyce/master

Corrected mistake in Em.computed.equal docs
Replace crossLink with a markdown link
Merge pull request #3379 from bmac/fix-cross-link

Replace crossLink with a markdown link.
Merge pull request #3344 from c0urg3tt3/patch-4

Update link_to.js
Merge pull request #3350 from trek/remove-getPath-setPath-deprecations

Removes long-deprecated getPath/setPath
Added tests failing for issue #3331

[BUGFIX beta]
Fire observers for array computed changes.

When dealing with chains of arrays, it is not necessary (or correct) to fire
non-array observers when array contents change, but the array itself does not.

However, for other `ReduceComputedProperty`s, such as `Ember.computed.max`, it
is necessary to fire observers in response to upstream array changes.

Thanks @ssured for pointing this out, and for providing tests!

Fix #3331 #3354.

[BUGFIX beta]