Fixes for hivemind exceptions

- Fixed KeyError in get_state call: eclipse node returns hbd_ prefix
- Fixed Decimal is not json serializable in get_active_votes

hive/server/condenser_api/get_state.py

@@ -299,8 +299,8 @@ async def _get_props_lite(db):
 
     return dict(
         time=raw['time'], #*
-        sbd_print_rate=raw['sbd_print_rate'],
-        sbd_interest_rate=raw['sbd_interest_rate'],
+        sbd_print_rate=raw['hbd_print_rate'], # TODO: rename this key to hbd_ after 0.24
+        sbd_interest_rate=raw['hbd_interest_rate'], # TODO: rename this key to hbd_ after 0.24
         head_block_number=raw['head_block_number'], #*
         total_vesting_shares=raw['total_vesting_shares'],
         total_vesting_fund_steem=raw['total_vesting_fund_hive'],

hive/utils/normalize.py

@@ -244,6 +244,9 @@ def number_to_json_value(number):
     """
     if number > 0xFFFFFFFF:
         return str(number)
+    from decimal import Decimal
+    if isinstance(number, Decimal):
+        return str(number)
     return number
 
 def time_string_with_t(time_iso8601):