Clarify Chutney exit policies for IPv4 and IPv6, including private addresses
Allow chutney exits to exit to all private addresses.
Tidy up exit policies, so each part of the policy is clearly identified.
Document alternatives to work around #11264 (moved), the microdescriptor 2x /8 requirement for exits.
Prepare for resolving #15353 (moved) by making sure the exit policies should work when localhost is the only available IP. This still requires further investigation.
Patch: Branch: clarify-exit-policies Repository: https://github.com/teor2345/chutney.git