I get an error when I create a table without LSI, looks like LocalSecondaryIndexes aren't in the response?

```
users = Table.create('users', schema=[HashKey('username')])
users.connection.describe('users')['Table'].keys()

[u'AttributeDefinitions',
 u'ProvisionedThroughput',
 u'TableSizeBytes',
 u'TableName',
 u'TableStatus',
 u'KeySchema',
 u'ItemCount',
 u'CreationDateTime']