find_by_provider_name_and_login takes provider into account now
find_by_provider_name_and_login takes provider into account now

Previously we were only considering provider_type and login, which
meant that an account shared across multiple providers of the same type
would always return the first matching provider.

Resolves https://bugzilla.redhat.com/show_bug.cgi?id=772352

aeolusproject/conductor,aeolusproject/conductor,aeolusproject/conductor,aeolusproject/conductor