Cherry-pick to xmega: Protecting the version of parseInt() and parseFloat().  (Paul Stoffregen) (10001866e612a3)
Cherry-pick to xmega: Protecting the version of parseInt() and parseFloat().  (Paul Stoffregen) (10001866e612a3)

jaehong/Xmegaduino,jaehong/Xmegaduino,jaehong/Xmegaduino,jaehong/Xmegaduino,jaehong/Xmegaduino,jaehong/Xmegaduino,jaehong/Xmegaduino