project config handling on project creation
unstable: project reworking
added PUT payment_method. fixed docu content
use bigint timestamp in config table to increase resolution
fixed tests
Merge pull request #41 from wongak/config_ts_resolution

use bigint timestamp in config table to increase resolution
Merge branch 'payment_method_api' of github.com:chruffer/paymentd into chruffer-payment_method_api
fix project sql mapping implementation
fixed test principalID instead of p.id
Merge branch 'payment_method_api' of github.com:chruffer/paymentd into chruffer-payment_method_api
Merge pull request #42 from wongak/chruffer-payment_method_api

Chruffer payment method api
Merge remote-tracking branch 'upstream/master' into payment_service
fix test implementation, would lead to deadlock