- changed test runner protocol

- added a check if the given regex line is really a regex (was missing for no and && no or connected -> normal regex)

  - no longer escapes are required because no longer json

- also the cleanup is now done if regex encountered an error
  - also done if we cannot create the temp dir

- fixed config for Mac
- fixed database backups

- fixed readme because we now use strings as transaction keys (not longer ints, timestamps)

- fixed issue where the regex function returned an array with the wrong (old) index... so the server could not deserialize the response

- if a file for a regex was not found then the result will be false (false = !neutralElement for the mode)

split code into (some) modules
added hard limits
changed interface