go: update to 1.1.2

Also fix impurity in src/pkg/net/lookup_unix.go.
Merge pull request #937 from wizeman/go

go: update to 1.1.2
applications/networking/sniffers/kismet: Update to 2013-03-R1b.
samba: provide libnss_{wins,winbind}.so.2 symlinks for nsswitch

Glibc >= 2.1 looks for libnss_<name>.so.2 files (see man nsswitch.conf),
so provide that.
lm_sensors 3.3.4 update, support for many more sensors
Merge pull request #938 from aristidb/master

lm_sensors 3.3.4 update, support for many more sensors
nixpkgs-lint: add check for meta.platforms attribute
Update splot to 0.3.11, so it compiles again