Fixing examples for release 0.12.0 (#120)

This addresses some spelling errors, and also removes the "kernel crashed" error message from the saved notebooks.

Also fixes an error in Images class, due to the new API changes.

Author: gsaluja9

aperturedb/Images.py

@@ -265,8 +265,7 @@ def __retrieve_bounding_boxes(self, index):
                 "_ref": 2,
                 "blobs": False,
                 "coordinates": True,
-                "labels": True,
-                "bounds": True,
+                "labels": True
             }
         }]
 
@@ -286,6 +285,7 @@ def __retrieve_bounding_boxes(self, index):
 
         except:
             print(self.db_connector.get_last_response_str())
+            raise
 
     def total_results(self):
 

examples/CocoDataPytorch.py

@@ -41,7 +41,7 @@ def generate_query(self, idx: int):
                 bbox = meta_info["bbox"]
                 q.append({
                     "AddBoundingBox": {
-                        "image": 1,
+                        "image_ref": 1,
                         "rectangle": {
                             "x": int(bbox[0]),
                             "y": int(bbox[1]),