Update rendering-a-template.md
Clarify URL update behaviour when using `transition.abort()`

Using the browser back button in conjunction with `transition.abort()` can lead to the browser URL being out of sync with what's displayed in the app. This commit adds a note explaining that `abort()` can occur after the URL is changed.
Move `isLoading` outside of actions
Update JS Bin example for asynchronous loading

The updated version uses the corrected `isLoading` location in `SpinButtonComponent`
Use ApplicationAdapter instead of creating a custom store.
fix typo in actions section of templates guide
Fix link to guide index markdown
Fixes #1245 with a link to the fixtures page.
Fixed a typo that made the example harder to understand (since it was wrong :)
Made it more explicit that this is done automagically if not provided
correctly check if lastFilter is undefined
Use ALL-UPPERCASE for these instead of having escaped stuff in the header
Merge pull request #1354 from franckuser16/master

correctly check if lastFilter is undefined
Fixed incorrect usage of nested resources
Added article
Merge pull request #1357 from perlun/patch-7

Added article
Merge pull request #1356 from perlun/patch-5

Fixed incorrect usage of nested resources
Merge pull request #1355 from perlun/patch-3

Use ALL-UPPERCASE for these instead of having escaped stuff in the header
Merge pull request #1353 from perlun/patch-2

Made it more explicit that this is done automagically if not provided
Changed to be more consistent with single vs double quotes