Make it use -fPIC on NetBSD (does not build on at least sparc64 otherwise).
Bump rev.
Updated security/nettle to 2.7.1nb1
py-gobject3 is required, and gobject-introspection is just required to build.

Bump PKGREVISION.
Updated inputmethod/ibus-anthy to 1.5.4nb1
Update to 0.6.0:

25.11.2013: pyCardDAV v0.6 released

 This is mostly a bug fix release (thanks to Jamie McClelland for fixing
 two bugs), but also introduces keyring support (thanks to Steven Allen).
 Have a look at the README for further information on keyring support.
Updated misc/py-carddav to 0.6.0
Bump PKGREVISION for json-c. Noted by tron.