Merge branch 'release-2.0' into develop
Merge branch 'release-2.0' into develop

Porting changes to build system
Merge branch 'release-2.0' into develop
Merge branch 'release-2.0' into develop
Merge tag 'release-2.0' into develop
Added "any" token for wildcard ipv4 matching, see tinyissue#122
Merge branch 'any_token' into develop
Added support for custom chains, tinyissue#52
Updated documentation to include custom chains functionality
Merge branch 'chain_support' into develop
Support for negated filtering criteria, tinyissue#42
Now produce errors for rdr-to/nat-to clauses when not used with match action
Updated copyright date
Updated documentation to reflect that errors are now thrown when using nat clauses with actions other than match
Merge branch 'release-2.1'