Move themes into their own folder 'themes', outside 'rulesets' folder.
Improve documentation.
Create empty attributes in constructor if not provided.
Fix tests on AtlantisRules class.
Obsolete.
Fix typo with MapData class.
Improve documentation.
Remove signatures from autoclass directive.
New module atlantis.gamedata.structure.
Make 'abr' parameter optional for Item and ItemAmount classes.
Add region_structure handler.
New append_structure and pop_report_description methods.
Fix a bug in TestItem.test_constructor
Change art folder for themes. Now bitmaps will be at the same folder as
json files, not in their own 'art' folder.
Change region_structure signature.
Use ItemAmount instead of the item dictionary in region_products and
region_structure calls.
Introduce changes to test structures list.
Handle diffently soldiers from units.
New module to manage graphic resources, as cursors.
Some changes:
- make use of resources package.
- add zoom in/out with mouse wheel functionality.
New resources folder, to store needed resource files (images, cursors,
font types and so on)
Add information about level type and depth to MapLevel class.