create_table() got an unexpected keyword argument 'options'
Your models need to be using the `playhouse.sqlite_ext.SqliteExtDatabase` instead of the normal `peewee.SqliteDatabase`.
 So:

``` python
class FTSBook(FTSModel):
    content = TextField()
    class Meta:
        database = <some SqliteExtDatabase() instance>
```

Okay, so I'm trying to create a FTSModel according to the instructions here: http://peewee.readthedocs.org/en/latest/peewee/playhouse.html#FTSModel

I have a model `Book` and a model

```
class FTSBook(FTSModel):
    content = TextField()
```

that should be created and filled with

```
FTSBook.create_table(content=Book)
FTSBook.rebuild()
FTSBook.optimize()
```

but on the `create_table`-statement, I get the following error:

```
Traceback (most recent call last):
  File "upgrade.py", line 218, in <module>
    FTSBook.create_table(content=Book)
  File "/Users/Daniel/dev/python/lesetagebuch/venv/lib/python3.4/site-packages/playhouse/sqlite_ext.py", line 102, in create_table
    cls._meta.database.create_table(cls, options=options)
TypeError: create_table() got an unexpected keyword argument 'options'
```

So it seems to be an error inside the sqlite_ext-Module. Why is the options-keyword unexpected? I tried to just to `FTSBook.create_table()` (without any options), but I get the same error.
