warzone2100: Update to 4.1.3
upstream changes:
-----------------
2021-08-09: Version 4.1.3:
* General:
* Fix: clearLoadedMods(): Clear mod_hash_list (commit:dbd3921a02df1f45579c77b22706b0ffdc7b93bc, #2096)
* Graphics:
* Fix: setBarGraphValue() divide-by-zero (commit:8b99babe058824b21ac9efc8a345147c154dc819, #2089)
* Fix: WIDGET::detach(): Check iterator before erasing (commit:2e5436dfedb8aa4d68c77680e9c7ba335b4d663f, #2101)
* Fix: IntMessageButton::getTip(): Add null-checks (commit:e1a51965749a9330f8ac370de9fc80959525e263, #2102)
* Campaign:
* Fix: Crash caused by saveMissionData() (commit:0cd0bc53cae655e79f3a5e3c6a4892c16617dd52, #2088)
* Multiplayer:
* Fix: Fix order of players in alliances screen (commit:dba9b4d252609047185a0449a88ac76189f7473c, #2105)
* Balance:
* Change: (Multiplayer) Reconstruct Howitzer branch and adjust artillery parameters (commit:2c6c4c9fbfae1d92dad194018f84ba73d896217a, #2070)
* Change: (Multiplayer) Make Mantis more accessible (commit:311838ff1e35057ecbc0fbd84aaefb8f8e74f5be, #2095)
* Change: (Multiplayer) Earlier access to Assault Gun, improve MG (commit:169f4637ead8885caacb22cd098543ba60af9268, #2094)
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