v4.9.0-beta7

Bug fixes

• Fixed #132 - Genre import: Good/bad gameplay features, and good themes where not imported correctly
• Fixed #133 - Licence import/export: Release year was not read properly
• Fixed #135 - It could happen that too many data entries where written to the german theme file when themes where imported
• Theme import: When multiple themes where imported simultaneously they where all written in the same line in the german theme file