func (a *BebopDriver) Up(speed int) {
	a.adaptor().drone.Up(speed)
}
Up makes the drone gain altitude.
speed can be a value from `0` to `100`.
package bebop
import (
	"github.com/hybridgroup/gobot"
)
const (
	Flying = "flying"
)
type BebopDriver struct {
	name       string
	connection gobot.Connection
	gobot.Eventer
}
func NewBebopDriver(connection *BebopAdaptor, name string) *BebopDriver {
	d := &BebopDriver{
		name:       name,
		connection: connection,
		Eventer:    gobot.NewEventer(),
	}
	d.AddEvent(Flying)
	return d
}
func (a *BebopDriver) Name() string { return a.name }
func (a *BebopDriver) Connection() gobot.Connection { return a.connection }
func (a *BebopDriver) adaptor() *BebopAdaptor {
	return a.Connection().(*BebopAdaptor)
}
func (a *BebopDriver) Start() (errs []error) {
	return
}
func (a *BebopDriver) Halt() (errs []error) {
	return
}
func (a *BebopDriver) TakeOff() {
	a.Publish(a.Event("flying"), a.adaptor().drone.TakeOff())
}
func (a *BebopDriver) Land() {
	a.adaptor().drone.Land()
}