Added Metaname to Domains
Added tfa and doc attributes for Metaname
Added StatusCake to Developer (has 2FA)

StatusCake.com is a website uptime monitoring tool.
Added Zapier to Developer (no 2FA)

Zapier is an API/platform automation tool.
Added MyDomain.com to Domains
social: add FR Viadeo
social: add Viadeo image + twitter
backup: add synology + image
image 32x32
image 32x32
Changed Authy's methods

If I'm not mistaken, Authy can text you, call you (for some sites like Coinbase), use software, and give you hardware tokens (for some sites).
Oops accidentally put an example in there!
Merge pull request #435 from dmin7b5/master

Added MyDomain.com to Domains
Update providers.yml
images w resize canvas to 32x32 for social
images w resize canvas to 32x32 for backup/synology
add tradeking
fix spacing
resize icon to 32x32
fix spacing again