Remove incorrect extension for controller

The JavaScript version of the controller should not have a .coffee file extension.
Fix typo

Remove 'be' so sentence reads correctly.
Merge pull request #14 from ohizkiya/patch-2

Remove 'be' so sentence reads correctly.
Merge pull request #13 from ohizkiya/patch-1

Remove incorrect extension for controller
Remove hash from handlebars else
Add filepath to Rails layout
Fix filepath on new lead template
Fix typo in ember-view code sample
Fix sentence in ember-object
Merge pull request #15 from eddie-ruva/typo-fix-properties

Typo fix properties
Replace appkit with ember cli in copy
Fixup copy
Merge branch 'abeburnett-master'

* abeburnett-master:
  Fixup copy
Add all chapters page
Merge branch 'Dorian-master'

* Dorian-master:
  Add all chapters page
Merge pull request #1 from vicramon/master