Type errors : NETOWRK instead of NETWORK

[mitevdev]

`WpaCLI.prototype.removeNetwork = function (netId, cb) {
this.request('REMOVE_NETOWRK ' + netId, cb);
};

WpaCLI.prototype.disableNetwork = function (netId, cb) {
this.request('DISABLE_NETOWRK ' + netId, cb);
};`