Comment 17 for bug 939026

Another update:

Expeditions are now basically working, this means:
* You can start an expedition in a port (and cancel it to recover the wares and the builder)
* Once all wares are available, a ship is called, the wares and the builder is loaded and the player gets a message
* Quite some possibilities for control of the expedition including island exploration and guiding the ship in a direction (no direct Coord selection, but direction selection (NW, W, E, etc.) including all needed messages to the player
* Construction of a port once a free port build space is found

Missing features are:
* User interface showing, whether the builder for the expedition is already available in the port.
* Save support for the port if an expedition is started (I haven't written this part because of the point above)
* Including of soldiers in the expedition
    - to be discussed, how to handle the soldiers - maybe add militarysite functionality to the port constructionsite and unload the soldiers as soon as the constructionsite is created?
* Handling of "clearing" a port space owned by an opposing player

From my point of view the later two are addons, therefore, I would like to test (and finally merge) the seafaring branch, as soon as the first two missing points are implemented.