0.5.1 Merged Pull Request by Florian Schueller: Linux compatibility and error
messages (Support for Linux Filepaths, Support for Minute and Hour in
Isochrones-Interval-GUI, Improved Error Messages for Isochrones)
0.5 Bugfixing and codeimprovements, added ability to choose a custom folder
to store isochrone tempfiles at in case users do not have write permissions on
plugin folder location, disable/enable gui elements while threads are running to
prevent accidential changes of settings
0.4 Implemented QThreads to keep GUI responsive on heavy load, added ability
to cancel the process, complete restructure of code, minor other improvements
0.3 Added calculated field for totalroute-distance and totalroute-mode,
minor code and general improvements, python-naming-conventions
0.2 Functionality for Routes added and minor optimizations
0.1 First experimental version, able to work with Isochrones