proporties: refactor if to ternary
proporties: refactor if to ternary

freifunkMUC/meshviewer,FreifunkBremen/meshviewer-ffrgb,ffac/meshviewer,nonchip/meshviewer,gherber/hopglass,ffac/meshviewer,nonchip/meshviewer,freifunk-mwu/meshviewer,freifunk-mwu/meshviewer,plumpudding/hopglass,srauscher/hopglass,xf-/meshviewer-1,FreifunkMD/Meshviewer,srauscher/hopglass,nonchip/meshviewer,plumpudding/hopglass,Freifunk-Luxembourg/hopglass,Freifunk-Rhein-Neckar/meshviewer,tcatm/meshviewer,ffrgb/meshviewer,yayachiken/hopglass,FreifunkBremen/meshviewer-ffrgb,Freifunk-Troisdorf/meshviewer,rubo77/meshviewer-1,tcatm/meshviewer,hopglass/hopglass,ffnord/meshviewer,ffrgb/meshviewer,hopglass/ffrgb-meshviewer,hopglass/ffrgb-meshviewer,TVLuke/meshviewer,freifunk-mwu/meshviewer,FreiFunkMuenster/meshviewer,yayachiken/hopglass,Freifunk-Rhein-Neckar/meshviewer,Freifunk-Luxembourg/hopglass,gherber/hopglass,tcatm/meshviewer,freifunkMUC/meshviewer,TVLuke/meshviewer,Freifunk-Rhein-Neckar/meshviewer,FreiFunkMuenster/meshviewer,ffac/meshviewer,rubo77/meshviewer-1,Freifunk-Troisdorf/meshviewer,xf-/meshviewer-1,ffnord/meshviewer,hopglass/hopglass,TVLuke/meshviewer,ffnord/meshviewer,FreifunkMD/Meshviewer,FreiFunkMuenster/meshviewer