Add background and high-resolution support to en.wiktionary favicon

Change-Id: I220f16e1f7e8262654ee42275b920ad9f52f49c9
Redo wikispecies favicon from logo with transparency and multi-res support

Change-Id: I31a8c8005c8439f165e1e8d93a235b4b9d5cfb52
Merge "Add background and high-resolution support to en.wiktionary favicon"
Merge "Redo wikispecies favicon from logo with transparency and multi-res support"