Only writing generated messages to log file

This is a significant change for me. My project runs 15 minutes — it runs very long just to print the test steps logs. Once I could upgrade to v7.0.0 beta and opt not to log test steps, I suppose my project will finish in 3 minutes.

However unfortunately I can not upgrade to v7.0.0 beta, because of the following issue:

I hope this issue to be fixed soon.