1.0 release
* New data sources:
  - Grayscale heightmaps as source for elevations
  - Arbitrary images as source for ground textures
  - Custom OSM XML Files as source for ground textures
* Full Support for the European Cities DLC.
  The building style of existing maps can be changed in the Metadata-Editor
* Performance of OpenStreetMap-Downloads improved, the hard download limits
  were removed
* Windows-Executable (.exe-file)
* Program Update Notifications
* Cache Janitor: removes deprecated and broken files from the cache
* Drastically improved error handling
* Useful new options in the settings menu (log file, updates, cache janitor, ...)
* Many small improvements and lots of bugfixes, see CHANGELOG.md