Update textproc/hs-texmath, 0.6.6 -> 0.6.6.3.
Update textproc/hs-yaml, 0.8.5.3 -> 0.8.8.3.
Update www/hs-http-client, 0.2.1 -> 0.3.3.1.
Update www/hs-http-conduit, 2.0.0.3 -> 2.1.2.1.
Update www/hs-http-types, 0.8.3 -> 0.8.5.