Update defining-a-store.md
Update show-only-incomplete-todos.md

We're looking for *active* todos thereby todos whose `isCompleted` property is `false`
Fix the shorthand access to another controller through needs
[fixes #529] search form, should now stay in the header
Make chapter_name always a string
Updated to 1.0.0-rc.5
update api docs to 1.0.0-rc.5
RC5 blog post
Add thanks for Stef
Minor fixes
Merge pull request #530 from lagartoflojo/patch-1

Minor fixes (planning-the-application.md)
Merge pull request #524 from trev/patch-1

Update show-only-incomplete-todos.md
Merge pull request #521 from willCode2Surf/patch-1

Update defining-a-store.md
Fix photos.edit link on Links page
Merge pull request #531 from balinterdi/fix-linkto-photos-edit-route

Fix photos.edit link on Links page
Update guides to cover Ember.Handlebars.helper
Merge pull request #532 from jgwhite/master

Update guides to cover Ember.Handlebars.helper
Update midleman version

middleman 3.0.11 has an issue about Ruby 2.0
* middleman/middleman#801

So I updated middleman for local development.
Fix pending spec
Some fixes for "Getting Started" guide.