Ignore .json files from profiler and fix typo "moodel"

Author: felker

.gitignore

@@ -116,4 +116,7 @@ ENV/
 # *.e*
 
 # Etc
-*.local
+*.local
+
+# TF Profiler output
+*.json

plasma/models/builder.py

@@ -373,17 +373,29 @@ def save_model_weights(self, model, epoch):
                    signatures=None,  # applicable to 'tf' SavedModel format only
                    )
         # TensorFlow SavedModel format (full directory)
-        full_moodel_save_dir = full_model_save_path.rsplit('.',1)[0]
+        full_model_save_dir = full_model_save_path.rsplit('.',1)[0]
         # TODO(KGF): model.save(..., save_format='tf') disabled in r1.15
         # Same with tf.keras.models.save_model(..., save_format="tf").
         # Need to use experimental API until r2.x
         # model.save(full_model_save_dir, overwrite=True, save_format='tf')
-        tf.keras.experimental.export_saved_model(model, full_moodel_save_dir,
+        tf.keras.experimental.export_saved_model(model, full_model_save_dir,
                                                  custom_objects=None,
                                                  as_text=False,
                                                  input_signature=None,
                                                  serving_only=False
                                                  )
+        # WARNING:tensorflow:Export includes no default signature!
+
+        # KGF: is the above comment accurate? 1.15.0 on macOS marks export_saved_model()
+        # as deprecated, but below save() call errors out
+        # model.save(full_model_save_dir,
+        #            overwrite=True,
+        #            include_optimizer=True,
+        #            save_format='tf',
+        #            signatures=None,
+        #            )
+
+
         # try:
         if _has_onnx:
             save_path = self.get_save_path(epoch, ext='onnx')