update the Public Suffix List
Merge pull request #601 from msimerson/psl

update the Public Suffix List
helo.checks: make match_re work

1. precompile the regex list at load time (was: compile every regex on every connection)

2. test regexes, ignore and log error for bad ones

3. load .ini and regex list at register() with config parsing callback (was at connect())

4. added tests for match_re
helo: use valid_regexes from utils
helo: when timed out, provide host name in error