Update tag for Ember.js on StackOverflow

Previously Ember.js related questions were tagged with `emberjs` which has been renamed to `ember.js` lately.
fixed missing `view` context
Merge pull request #148 from sly7-7/patch-2

fixed missing `view` context
Adds "Router Primer guide"

* Delivers guide
* Changes text of outlets.md to refer to the
  primer
* Updates the guides.yml file
removed extra words
fix typo
replaced Ember.State by Ember.Route
fixed some typos
added reference to router.currentPath
Copy editing, covering edge questions
Merge pull request #108 from sgharms/routingPrimer

Adds "Router Primer guide"
Added FG
Merge branch 'master' of github.com:emberjs/website
Added Witsbits to list of Ember users
Fixes for Router Primer

- corrected &endash; to be &ndash;
- fixed anchor/markup issue causing footnote numbering to be off
- changed references to 1000 ms to 2000 ms for consistency
- grammatical fix and some clarifications
WIP on documentation cleanup

This merges "documentation" and "guides", which
previously did not have clear semantic differences
fix some typos in router primer
WIP on documentation refactor
Fix syntax error in config.rb
Merge pull request #152 from inkredabull/master

Fixes for Router Primer