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* Add-on server:
* Ignore case on add-on (file)names (bug #13080)
* Disallow uploading of add-ons with no title, type, author, version or description specified and warn about invalid versions
* Graphics:
* New portrait for the female Thief
* New tiles for summer and fall deciduous and mixed forests
* Deciduous and mixed forests now used in several campaigns (not all, yet)
* New tiles for dirt
* Fixed a lot of small terrain transition glitches
