Prepare 0.6.3 release
Prepare 0.6.3 release

SpainTrain/seti-ui,run-time/run-time-ui,wwmyers/solarized-seti-ui,Restuta/seti-ui,justo/seti-eighties-ui,kryptonianson/seti-ui-red,vermotr/seti-classic,Taitrnator/seti-ui,e-jigsaw/seti-ui,e-jigsaw/seti-ui,wwmyers/solarized-seti-ui,vermotr/seti-classic,run-time/run-time-ui,jesseweed/seti-ui,timnew/seti-ui,Restuta/seti-ui,Restuta/seti-ui