Typo in 'flask.client.oauth.RemoteApp' token property

[pawelad]

Hi - I'm pretty sure I found a bug while debugging #81.
The flask.client.oauth.RemoteApp.token property setter and getter are tying to access a different path:

authlib/authlib/flask/client/oauth.py

Lines 189 to 205 in 617b117

	@property
	def token(self):
	ctx = _app_ctx_stack.top
	attr = 'authlib_client_oauth_token_{}'.format(self.name)
	token = getattr(ctx, attr, None)
	if token:
	return token
	if self._fetch_token:
	token = self._fetch_token()
	self.token = token
	return token
	@token.setter
	def token(self, token):
	ctx = _app_ctx_stack.top
	attr = 'authlib_oauth_token_{}'.format(self.name)
	setattr(ctx, attr, token)

Notice the attr being different, authlib_client_oauth_token_{} vs authlib_oauth_token_{}. That means even if you set the token via self.token = token, accessing self.token returns None.