v0.4.29

Added

• Sys init capability for QoS service (#1891).
• Multiple gRPC compressions (#1889).
  Before the only gzip compression was always used, which caused troubles with gRPC clients without compression support. This commit allows selecting how to compress the response depending on request compression type.
• Memory limit for Optimus (#1883).

Fixed

• Sometimes zero worker price in Optimus (#1892).
• Proper create/remove plans logs in Optimus (#1887).
• Temp fix for "alien" deals bound to ask-plans (#1884).
  Under Sanya's approve thou shall commit this PR.