oops, I forgot to commit for a while...

- New MacOSXMacros port update
- add `configure.optflags -g` to ports with debug variants
- use `configure.args-replace` in various places where relevant
- glade[0|1]: dependencies and tidying up and stuff
- gnutls2: use p11-kit, and update the configure patches
- switch various p5.12-* dependencies to p5.16-* dependencies, now that
perl5.16 is the default in trunk
- try to use the correct webkit-gtk for the platform for ports that
depend on it
- MacPorts port: update to 2.2.1 for all variants except `+egallager`
(my fork may have _branches_ for 2.2, but it only has _tags_ for 2.1.3
and older so far...)
- update cpan2port to most recent revision
- copy over the gnome-libs and gvpe Portfiles from trunk to try to fix
them up
- edit the `cpan2port`-produced Portfilecandidate for p5-net-openssh
into an actual Portfile