component/keras: add keras 1.2.1.

component/keras/buildout.cfg

+[buildout]
+extends =
+  ../tensorflow/buildout.cfg
+  ../h5py/buildout.cfg
+  ../pillow/buildout.cfg
+parts =
+  keras-egg
+
+[keras-egg]
+recipe = zc.recipe.egg
+eggs = 
+  ${scipy:egg}
+  ${numpy:egg}
+  ${tensorflow-build-install-egg:egg}
+  ${protobuf-python:egg}
+  Keras
+  ${h5py:egg}
+  ${pillow-python:egg}
+interpreter = keras-python
+scripts = keras-python
+
+[versions]
+Keras = 1.2.1
+Theano = 0.8.2
+tensorflow = 0.12.0
+h5py = 2.7.0rc2
+Cython = 0.25.2