Update Skype (#2967)
Update Skype (#2967)

* Change Skype name tag

* Update Skype doc link, methods and exception

- Changed doc link to new help page
- Added `email` as a method of 2FA
- Removed exception to reflect new status of Skype accounts

Jawshy/twofactorauth,vgarmash/twofactorauth,Nitrokey/dongleauth,NormandLemay/twofactorauth,vgarmash/twofactorauth,rj175/twofactorauth,cez81/twofactorauth,vgarmash/twofactorauth,Nitrokey/dongleauth,bjorno/twofactorauth,NormandLemay/twofactorauth,rj175/twofactorauth,bceasydns/twofactorauth,Jawshy/twofactorauth,rj175/twofactorauth,Jawshy/twofactorauth,bjorno/twofactorauth,cez81/twofactorauth,bceasydns/twofactorauth,jdavis/twofactorauth,bceasydns/twofactorauth,bjorno/twofactorauth,Nitrokey/dongleauth,Jawshy/twofactorauth,rugk/twofactorauth,jdavis/twofactorauth,jdavis/twofactorauth,cez81/twofactorauth,NormandLemay/twofactorauth,rugk/twofactorauth,rugk/twofactorauth