core: Don't call stop on webserver if it isn't running.
core: Don't call stop on webserver if it isn't running.

Former-commit-id: 4226727ded50bb597e72701b306df4d7bc0efe4a [formerly a4d08b1b790042648d9380f90caa5961a4ea05e4]
Former-commit-id: b01ccc1839e32f4f1414cf4500cf9047538dda61
torhve/ivar2,torhve/ivar2,torhve/ivar2,haste/ivar2