Bugfix for not playing soundfiles.

- This issue was comprised of three different problems:
  1: The filed order in Transcription_<study> imports given from Paul was different than expected.
  2: dataProvider incorrectly ignored soundPaths for second Transcriptions.
  3: In some cases (Andean, lex2) Transcription.js forgot soundfiles due to the soundPaths field not being cloned,
     and thereby possibly being overwritten.