baro.js: Limit the barogram to positive altitudes
baro.js: Limit the barogram to positive altitudes

RBE-Avionik/skylines,Harry-R/skylines,RBE-Avionik/skylines,snip/skylines,snip/skylines,Turbo87/skylines,shadowoneau/skylines,Turbo87/skylines,RBE-Avionik/skylines,skylines-project/skylines,TobiasLohner/SkyLines,kerel-fs/skylines,Turbo87/skylines,RBE-Avionik/skylines,kerel-fs/skylines,snip/skylines,Harry-R/skylines,shadowoneau/skylines,kerel-fs/skylines,Harry-R/skylines,skylines-project/skylines,dkm/skylines,dkm/skylines,TobiasLohner/SkyLines,shadowoneau/skylines,dkm/skylines,skylines-project/skylines,skylines-project/skylines,shadowoneau/skylines,Harry-R/skylines,Turbo87/skylines,TobiasLohner/SkyLines,dkm/skylines