"length" typo

[Mike]

`if (settings.type.lenght === 0) {
console.log('bootstrapAlert: type is empty');
return false;
}

if (settings.message.lenght === 0) {
  console.log('bootstrapAlert: message is empty');
  return false;
}`

[Javier Prieto]

Fixed in commit 6eb6ab4
Thanks!