Configuring PYTHON_LEGACY UUID representation in bottle.py

We cannot encode native uuid.UUID with UuidRepresentation.UNSPECIFIED therefore defining uuid_representation as PYTHON_LEGACY fixes the issue
Contains fix for - e-mission/e-mission-docs#856 (comment)

emission/net/api/bottle.py

@@ -14,6 +14,8 @@
 """
 
 import sys
+import bson.json_util as bju
+from bson.binary import UuidRepresentation
 
 __author__ = 'Marcel Hellkamp'
 __version__ = '0.13-dev'
@@ -2001,7 +2003,7 @@ def wrapper(*a, **ka):
 
             if isinstance(rv, dict):
                 #Attempt to serialize, raises exception on failure
-                json_response = dumps(rv)
+                json_response = bju.dumps(rv, json_options = bju.LEGACY_JSON_OPTIONS.with_options(uuid_representation= UuidRepresentation.PYTHON_LEGACY))
                 #Set content type only if serialization successful
                 response.content_type = 'application/json'
                 return json_response