Prepare 2.2.4 release.

keras/__init__.py

@@ -23,4 +23,4 @@ from .layers import Input
 from .models import Model
 from .models import Sequential
 
-__version__ = '2.2.3'
+__version__ = '2.2.4'

setup.py

@@ -24,13 +24,13 @@ and is distributed under the MIT license.
 '''
 
 setup(name='Keras',
-      version='2.2.3',
+      version='2.2.4',
       description='Deep Learning for humans',
       long_description=long_description,
       author='Francois Chollet',
       author_email='francois.chollet@gmail.com',
       url='https://github.com/keras-team/keras',
-      download_url='https://github.com/keras-team/keras/tarball/2.2.3',
+      download_url='https://github.com/keras-team/keras/tarball/2.2.4',
       license='MIT',
       install_requires=['numpy>=1.9.1',
                         'scipy>=0.14',