Update 2014-09-26-The-Exceptional-Doorway.md

Minor edits, and added example of deeply nested closure error handling.
Merge pull request #1 from greghaskins/patch-1

Update 2014-09-26-The-Exceptional-Doorway.md
Update 2014-09-26-The-Exceptional-Doorway.md
Update 2014-09-26-The-Exceptional-Doorway.md
Rename _drafts/2014-09-26-The-Exceptional-Doorway.md to _posts/2014-09-30-The-Exceptional-Doorway.md
Update 2014-09-30-The-Exceptional-Doorway.md
Update 2014-09-30-The-Exceptional-Doorway.md
Update 2014-09-30-The-Exceptional-Doorway.md
Update 2014-09-30-The-Exceptional-Doorway.md
Merge pull request #1 from robertfmurdock/master

Update from upstream