Merge branch 'develop'

gui/slick/images/subtitles/flags/bod.png

gui/slick/images/subtitles/flags/bos.png

gui/slick/images/subtitles/flags/bre.png

gui/slick/images/subtitles/flags/bul.png

gui/slick/images/subtitles/flags/cat.png

gui/slick/images/subtitles/flags/ces.png

gui/slick/images/subtitles/flags/cha.png

gui/slick/images/subtitles/flags/chu.png

gui/slick/images/subtitles/flags/chv.png

gui/slick/images/subtitles/flags/cor.png

gui/slick/images/subtitles/flags/cos.png

gui/slick/images/subtitles/flags/cre.png

gui/slick/images/subtitles/flags/cym.png

gui/slick/images/subtitles/flags/dan.png

gui/slick/images/subtitles/flags/deu.png

gui/slick/images/subtitles/flags/dzo.png

gui/slick/images/subtitles/flags/ell.png

gui/slick/images/subtitles/flags/eng.png

gui/slick/images/subtitles/flags/epo.png

gui/slick/images/subtitles/flags/est.png