merge init services
Merge branch 'api_service' of https://github.com/wongak/paymentd
Merge branch 'master' of github.com:fritzpay/paymentd
Merge branch 'model' of https://github.com/wongak/paymentd into model
add principal not found err
added project representation model
avoid nil as return value for system config
Merge branch 'model' of github.com:chruffer/paymentd into chruffer-model
Merge branch 'chruffer-model' into model