Added Crazydomains to domains and Cloudshards to developers

(Probably should create a new Hosting section for VPSs and whatnot?)
Update developer.yml

accidently removed heroku.....
Add NamesPro.ca to domain registrars list
Add twitter icon for NamesPro.ca
Added Cloudinary.com an image hosting company to 'Other'
Add vanillaforums.com in progress
chunkhost supports 2fa
Added Dashlane, Keeper, Persowna, and SecureSafe

See #448
Corrected image format for Keeper
SoftLayer is a hosting provider.
Add warning for Heroku 2FA which is in Beta

Punctuation for EngineYard warning
Added MyDigipass.com
Added mydigipass.png to img\identity
Added providers MyDigipass and VASCO png files
mepin provider added
Added providers VASCO and MyDigipass
Added security sites Dome9 and Nexgate
Updated png files of nexgate and dome9
email left out after pull discussion
Removed Mydigipass from the providers and changed Dome9's website to http