v.5.7.3

Improvements:

1. [LUNA-5213] Estimator task was added. See estimator task resource.

2. [LUNA-5214] Service sends Accept-encoding header is equal to identity, deflate, gzip to other services with proxy

   requests (before deflate, gzip). This change disabled automatically compress (on side of other service) and

   decompress (on side of Luna Api) response body in several cases such that getting image, zip archive.

3. [LUNA-5235] Service reuse connections to other platform services now. This change decreases open connections and speeds up

   requests to other services.

Migration:

See a migration manual.