sdlmame: add expression
Fix the misc test

http://hydra.nixos.org/build/6480163
Test nixos-option
nixos/graphite: carbon, use syslog for logging

Twisted provides option to log with syslog, this enables nicer logging.
Imagine what happens in a case of exception. If logs are written to stdout,
traceback won't be merged thus giving ugly logs. This commit fixes that.
This is also one of the official ways of starting carbon, so no worries.
haskell-conduit: update to version 1.0.8
haskell-constraints: update to version 0.3.4.1
haskell-either: update to version 3.4.2
haskell-entropy: update to version 0.2.2.3
haskell-enumerator: update to version 0.4.20
haskell-hashtables: update to version 1.1.2.1
haskell-haskell-src-meta: update to version 0.6.0.4
haskell-haxr: update to version 3000.10.1.1
haskell-mwc-random: update to version 0.13.1.0
haskell-network-conduit-tls: update to version 1.0.2
haskell-optparse-applicative: update to version 0.6.0
haskell-pandoc-citeproc: update to version 0.1.2
haskell-postgresql-simple: update to version 0.3.8.0
haskell-resourcet: update to version 0.4.9
haskell-simple-sendfile: update to version 0.2.13
haskell-yaml: update to version 0.8.5.1