0.5 2018-06-15:
* supports in-memory files based on GDAL "/vsimem/"
* does not require temporal local VRT files any more
* fixed bug #9 "Save VRT error"
0.4 Mai 2018:
* fixed bug #6 drag 'n drop from QGIS 3 layer list
* fixed bug #7 import of raster layers known to QGIS MapLayerRegistry
* enhancement #7 VRTs can now be written with empty virtual raster bands
(but have to define at least one virtual band)
* fixed bug #10 removal of selected data sources
0.3 2018-03-02:
* Code-base converted to PyQt5 and QGIS 3
* Small fixes of smaller UI response issues
* Sphinx - based documentation, documentation is also shown in the "help"
tab