Fix floating point exception in FGGasCell when gas contents approach zero#1394

bcoconni merged 2 commits into

JSBSim-Team:masterJSBSim-Team/jsbsim:masterfrom

DheerendraTomar:fix/gas-cell-fpe-on-balloon-burstDheerendraTomar/jsbsim:fix/gas-cell-fpe-on-balloon-burstCopy head branch name to clipboard