Update gradle wrapper url.
Support for client certs. Some work on SEB api.
Merge branch 'master' into feature/seb-api

* master:
  Update gradle wrapper url.
  Bump version. v1.9.6.15
  Update SEB kort certificate.
  Allow all characters for username for plusgirot.
  Update Rikslunchen certificate.
  Update SevenDay certificate.
  Ignore Coop transactions without dates.
Update project structure and gradle stuff.