Tagged release v3.4.0

509986e Add server_time to the room feed
dc9b3a9 Fix bid spacing after 3 symbols
445e658 Change space for bid formatting
f93bec2 Integrate prozorro-utils package
ecbc6b7 Remove unused packages from requirements
9443639 Remove specs
2b6c48f Remove current_bid_index and current_bid_id from public_meta on SequentialRound exit