SQL function get_account renamed find_account_id to follow naming scheme.
Vote related views/types/functions extended by id since database_api requires it.
New SQL function to cover find_votes functionality.
[Fix]: Neither voter nor post is mandatory in list_votes calls.
[Fix]: fixed internal _get_post_id in bridge_api
find_votes_impl no longer requires full context, just what it actually uses: db; it also no longer checks passed arguments, only its official API version does.
list_votes_impl removed since only its official version is needed
[Fix]: Official API find_votes/list_votes now properly pack response in dictionary with 'votes' list
