[Implemented] Trading options improvements

[Stan Rogers]

"At the ship selection screen, group ships by fleets.
-Display fleet name for each group"

This change alone has made a HUGE difference in fleet management ease.

[Captain Jack]

Still, we believe that the ability to load/unload multiple ships based on user selection and the ability to automatically sort out excess cargo are two important improvements.

We hope to finish it today, we are re-writing the code to allow the extra mechanisms.

[Captain Jack]

We are nearing the code rewrite completion. Due to its size and complexity we would prefer to beta test it before we release it to everyone. For this reason, we are seeking up to 3 beta testers. If you are interested to do it, message me in-game at #1 and I will let you know once we are done.

[Captain Jack]

Warehouse management implemented.

Improvements:
-Listing is now by fleet - ships are visible in which fleet they belong.
-Added links to ship/fleet pages.
-Improved return messages.
-Rolling your mouse over cargo, informs you of the exact cargo that the specified ship currently carries.
-Ability to select multiple ships.
-Loading/Unloading automatically resolves excess cargo issues/automatically distributes cargo to ships.

Points to consider:
-When buying/selling to market, multiple ships does not work. There is a workaround though: Do it to the warehouse and then Manage the warehouse.
Making the market to also work with multiple ships requires as to also rewrite another part of the code which currently does not justifies the amount of time that this needs.
So, use Warehouse instead which now supports multiple ships management.

-The priority used when distributing goods to ships is the display order (wood,iron,tools,food,cotton,rum,tobacco,gold bars). This means that if you choose to put 500 wood and 500 iron in a 60 cargo ship, then wood will get priority over iron and 60 crates of wood will be loaded.

-One more improvement is coming soon (ability to select/deselect all ships in a particurlar fleet with a single click)

[Most Lee Harmless]

New warehouse controls and interfaces are excellent : so far, I haven't broken them.. will keep trying though..