Fix regexps in API
Merge remote-tracking branch 'origin/refactor-db' into refactor-db

* origin/refactor-db:
  submission works also on POST only
  testing submission
  ReferenceSet does work :)
  refactored ReceiverTip creation
  hate!hate!hate! debug interface lost
Merge remote-tracking branch 'origin/refactor-db' into refactor-db

* origin/refactor-db:
  PUT, POST, GET, DELETE now workin on admin/context porca madonna puttana
Fix unittests for handlers implementing unittests for Node, Contexts, Context
Merge remote-tracking branch 'origin/refactor-db' into refactor-db

* origin/refactor-db:
  removing folder
  receiver can't be sets ATM
  fixed internaltip.receivers is a list, not a ref