Patch 0.5.10

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Features
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 * 1) PvP - event: an optional player versus player event based on a community idea from the forum lasting several weeks, has been integrated for the beginning of next year.
 * 2) Resources can now be purchased in the Town Menu, the Workshop and from the Premium Trader.
 * 3) Missing resources for experiments can now be directly purchased from the Academy.

Changes
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 * 1) ; N / A

Bugfixes
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 * 1) Loading problems occurring at the full hour have been eliminated.
 * 2) Under certain circumstances, when the General of an alliance withdrew troops from other players that were currently loading, these troops were not accessible to the owner anymore.
 * 3) When an allied player occupied a town in which own ships were stationed, they could only be withdrawn.
 * 4) Javascript error in the Black Market fixed.
 * 5) When editing current alliance ranks, either the special rank or automatic rank can be selected, but not both together.
 * 6) In the Art of Warfare help, bombers and air defence or rather carrier and anti-carrier were switched around.
 * 7) Display error in barracks and shipyard have been fixed.
 * 8) The premium town advisor's resource overview didn't show the goods that were still being shipped out at the Trading Post.
 * 9) If you had the Diplomatic Overview (message overview) open on the town screen of a town not belonging to you, you couldn't turn onto the second page.
 * 10) If the town was switched while the "Build Building" window was open, the subsequently selected building in the first town was built.
 * 11) Various display errors fixed.