[DOC] add example to computed properties set in API
removed hyperlink from 'see' in README.md
Make _view a special prefix instead of a keyword
Merge pull request #5574 from mmun/view-prefix

Make _view a special prefix instead of a keyword
Move routing helper methods to more appropriate package
Merge pull request #5581 from mmun/move-routing-helpers

Move routing helper methods to more approporiate package
[DOC] Fix example code syntax in code comment
Merge pull request #5583 from tricknotes/fix-example

[DOC] Fix example code syntax in code comment
Merge pull request #5572 from sachin004/readme_contri_hl_fix

removed hyperlink from 'see' in README.md
[DOC release] API documentation for Query Params. #5460
Merge pull request #5538 from mikepmunroe/computed-set-api-example

[DOC] add example to computed properties set() in API docs
fixed duplicate imports / exports, importing none existent values and accidentally importing default value instead of specific export
removed circular dependencies between ember-metal/properties and ember-metal/property_set
Merge pull request #5586 from yonjah/es6-circular

ES6 circulare dependencies in ember-metal properties and property_set
Merge pull request #5585 from yonjah/es6-lint

es6 lint to improve ES6 compatability
[BUGFIX beta] Only assert there is no failing deprecation
[BUGFIX beta] contextualElements, handle omitted start tags

During a renderTree call, look to the morphs for information about the
contextualElement. Pass this to the Ember renderer, which in turn passes
it to the buffer for use when generating an element.

Here I've changed the morph creation points to explicitly pass a
contextualElement. This avoids the possibility of createMorph's fallback
to document.body happening.

Additionally, strip omitted start tags even if the child node causing
their generation is after a script tag. See the long comment in
`render_buffer`.