address: added tests for canonify
Address: renamed $domain/$domain_re (clearer)

and added a couple more tests
patch from Carlos Canau <Carlos@Canau.COM>
Merge pull request #133 from msimerson/greylisting

patch from Carlos Canau
Merge pull request #130 from msimerson/master

address: added tests for Address::canonify
Consolidate greylist exclusions into exclude()

This makes for an easily overridden method for excluding hosts from greylisting with custom rules
Add missing $self and explicit return
Add tests
Merge pull request #135 from jaredj/consolidate_exclusions

Consolidate greylist exclusions into exclude()
Add RFC link
Merge pull request #136 from jaredj/master

Add RFC link
allow testing a single plugin
correct spelling of deprecated
Merge pull request #138 from msimerson/typo

correct spelling of deprecated
Merge pull request #137 from msimerson/test-limit

allow testing a single plugin
geoip: simplify the get/set data bits
added GeoIP2 support, partial ASN support
remove unused var
ASN lookups now work
strip off AS prefix