3.5.3

This is a patch release fixing a few things with 3.5.2:

• Restore default templates in bootstrapped rebar3
• start at least one async thread in async thread poll
• Logger support in cth_readable, and compact CT output

Do note that Erlang R16B support has officially ended in order to support Erlang/OTP-21-rc1, given that logging handling required maps, which did not exist back in R16. If you need R16B support, the old rebar3 releases should work for a good while.

A new compact format for common test output has been added and made default, equivalent to --readable=compact. You can revert to previous behaviour with --readable=true or cancel all reformatting of output with --readable=false as before.