Update providers.yml

Added SAT Mobile ID from Secure Access Technologies Inc.
Added logo
Merge pull request #1 from mxxcon/sat

Added logo
barclays US doesn't have 2FA
correct URL for Barclays US
Barclays twitter handle
move Barclays into Banking
1and1 doesn't support 2FA
Merge pull request #526 from ilyakatz/1and1

1and1 doesn't support 2FA
Added SyferLock GridGuard

Added SyferLock GridGuard to 2 factory Authentication Providers
Adding SyferLock 32x32 icon
Added SyferLock icon

Added 32x32 SyferLock icon
Update providers.yml
Fixed icon size
Shorten VIP name for tidiness factor
Move nav to _includes/ folder

Allows for:
- Using 'active' class from SemanticUI.
- Easy updating of nav elements.
Thanks EngineYard for 2FA
Merge pull request #527 from ilyakatz/engineyard

Thanks EngineYard for 2FA
Merge branch '524', closes #524
Always just use the section.id as an id