error running examples

[Erik Gafni]

$ python simple.py
Traceback (most recent call last):
File "simple.py", line 3, in
from flask.ext import superadmin
File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask/exthook.py", line 62, in load_module
import(realname)
File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/init.py", line 2, in
from model import ModelAdmin
File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/model/init.py", line 1, in
from .base import ModelAdmin, AdminModelConverter
File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/model/base.py", line 10, in
from flask_superadmin.form import BaseForm, ChosenSelectWidget, DatePickerWidget,
File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/form.py", line 115, in
class FileField(wtf.FileField):
AttributeError: 'module' object has no attribute 'FileField'

[Burhan Khalid]

I submitted a patch that fixes this problem.