Merge trunk into 0.9.15, excluding CMakeLists.txt and ChangeLog.txt - this should fix snowball again, pick up some more translation changes, hide the seed button by default and fix a couple of frontend desyncs

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[patterns]

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**.h = native

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**.c = native

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**.cpp = native

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**.lua = native

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**.txt = native

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**.pas = native

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**.inc = native