Add instructions for using FixtureAdapter
Update 2013-04-12-ember-data.md
Update 2013-04-12-ember-data.md
Update 2013-04-12-ember-data.md
Update 2013-04-12-ember-data.md
Merge pull request #1920 from samselikoff/patch-1

Add instructions for using FixtureAdapter
Generalize Sublime Text issues to both versions 2 and 3