make OS depend on property rather than systemProperty
make OS depend on property rather than systemProperty

puniverse/capsule,angrilove/capsule,lookfirst/capsule,leolujuyi/capsule,kevintvh/capsule,leolujuyi/capsule,trance1st/capsule,isdom/capsule,kevintvh/capsule,guiquanz/capsule,trance1st/capsule,tal-m/capsule,lookfirst/capsule,guiquanz/capsule,lookfirst/capsule,puniverse/capsule,isdom/capsule,lookfirst/capsule,victorbriz/capsule,victorbriz/capsule,tal-m/capsule,angrilove/capsule,lookfirst/capsule