* extended unit tests for interpolator / parts testing
* allow to skip sorting when splitting by time
* update ot aircraft to FSX in own member function
* Skip time sync parts (FSX) when disabled
* fixed styles such as copyright headers
* use text stream instead of qDebug() for output
* int instead of qint
* misc. smaller tweaks
* extended the JSON example (special chars). JSON might be used to "cache" the FSX entries
