Allow the OmniAuth provider args parameter to be passed through

Fixes #2608

Merge branch 'check_gitlab_in_git_group' of https://github.com/VonC/gitlabhq into VonC-check_gitlab_in_git_group

Fixes #2166

Fixes #2617

Fixes #2563

add default for Settings['satellites']

Remove wget dependency, now all curl

'namespace' should be exposed via the API

clean application_helper a bit

Auth: Net::BER::BerIdentifiedStrings to Strings