Change logo on Serbian version of Wikibooks, the file is uploaded to Commons: https://commons.wikimedia.org/wiki/File:Wikibooks-logo-sr.svg
I updated text so it is consistent with original, and I think this is not any controversial change so voting or consensus must be get (but when there are votings for T172245, T172255 and T172268 I started it also for this: [[https://sr.wikipedia.org/wiki/%D0%92%D0%B8%D0%BA%D0%B8%D0%BF%D0%B5%D0%B4%D0%B8%D1%98%D0%B0:%D0%A2%D1%80%D0%B3/%D0%A2%D0%B5%D1%85%D0%BD%D0%B8%D0%BA%D0%B0#.D0.A3.D0.B2.D0.BE.D1.92.D0.B5.D1.9A.D0.B5_.D0.BF.D1.80.D0.B5.D0.B2.D0.B5.D0.B4.D0.B5.D0.BD.D0.BE.D0.B3_.D0.BB.D0.BE.D0.B3.D0.BE.D0.B0_.D0.B7.D0.B0_sr.wikibooks.org|here]]). There are actually no content changes. I thus updated the PNG from current SVG.
NOTE: T324545 needs to get resolved in order to finally close this task. Please do not mark it as Resolved because it is not and centralized discussion is needed.