Add go-errcheck recipe

https://github.com/dominikh/go-errcheck.el
Merge pull request #862 from yasuyk/go-errcheck

Add go-errcheck recipe
add go-eldoc recipe
Merge pull request #865 from syohex/go-eldoc

add go-eldoc recipe
Adding org-trello, org-mode minor mode to sync org-mode and trello
Merge pull request #866 from ardumont/org-trello

org-trello - org-mode minor mode to sync org-mode and trello