* Cosmetics and slot definitions.
* Implemented ship properties and stuff, although not actually used yet.
* Free slot properties.
* Moved outfit property to the outfit slot itself.
* Outfits load properties now.
* Respect properties when equipping.
* Formatting.
* Print slot property.
* Colouring of slots somewhat.
* For pilot sanity check make sure outfits fit.
* Removed ununesd define.
* Use the ship outfit slot as a reference and do not duplicate data.
* Added basic example of working slot properties.
* Display overlay on slots.
* Added missing XML headers to some xml files.
* Slots are now handled separately in xml.
Merge branch 'master' into slots
* Updated doxygen.
* Some test values for core slots.
* Actually add default outfit outfits to slots by default.