Add signature field to account
Include signature in emails
Leave out messages on API conversations index

Task #399
Merge i18n and translate
Set empty string when signature is not defined
Apiary docs are in sync with live api
Merge pull request #182 from pksunkara/apiary

Apiary docs are in sync with live api
Fix tab to spaces
Change to include
Merge pull request #180 from wesleylancel/api-disable-messages

Leave out messages on API conversations index, task #401
Update sequential to remove warning
Merge pull request #179 from wesleylancel/signature

Add signatures to account & emails, task #230
Add Open Graph meta tags to the product page #281
Merge pull request #183 from jess/meta_tags

Add Open Graph meta tags to the product page #281