Bugfix Setting Computed Properties

The example at "Setting Computed Properties" tries to split a non existing variable fullNameString.
controllers are no more instantiated on App NS
spelling fix
Merge pull request #868 from zzzev/patch-1

Tiny little spelling fix in docs
Update deciding_if_a_recipe_is_a_good_fit.md

update copy.
Update index.md

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Update participating_if_you_dont_know_ember.md

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Update participating_if_you_know_ember.md

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Update suggesting_a_recipe.md

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Update understanding_the_cookbook_format.md

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Added radflex.pt to Ember Users.
Rename linkPrefix to 'channel'.
Merge pull request #866 from nivoc/patch-1

Bugfix Setting Computed Properties
updating setter example
Make Project model.
Merge pull request #871 from twokul/master

updating setter example
Use new App.Project for filtering.

@twokul / @rjackson
Merge pull request #870 from cascalheira/master

Added radflex.pt to Ember Users.
Add description for each channel in /builds.

@twokul / @rjackson
Provide actual download link.