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Releasing 3.11.90
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0^0 is indeterminate

https://bugzilla.gnome.org/show_bug.cgi?id=724114
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Fix precision loss of ln(e^1) (fixes bug 711766)

ln(e^1) calculated slightly more than 1, which means that some things were broken,
for example e^(i pi).

https://bugzilla.gnome.org/show_bug.cgi?id=711766
Fix tests for zero to the power zero.
Updated Lithuanian translation