Cabal revisions of github-0.18

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name:                github version:             0.18+x-revision:          1 synopsis:            Access to the GitHub API, v3. description:   The GitHub API provides programmatic access to the full                  http-client           >=0.4.8.1   && <0.6,                  http-client-tls       >=0.2.2     && <0.4,                  http-link-header      >=1.0.1     && <1.1,-                 http-types            >=0.8.6     && <0.11,+                 http-types            >=0.8.6     && <0.12,                  iso8601-time          >=0.1.4     && <0.2,                  mtl                   >=2.1.3.1   && <2.3,                  network-uri           >=2.6.0.3   && <2.7,

 name:                github version:             0.18-x-revision:          1+x-revision:          2 synopsis:            Access to the GitHub API, v3. description:   The GitHub API provides programmatic access to the full                  http-client           >=0.4.8.1   && <0.6,                  http-client-tls       >=0.2.2     && <0.4,                  http-link-header      >=1.0.1     && <1.1,-                 http-types            >=0.8.6     && <0.12,+                 http-types            >=0.8.6     && <0.13,                  iso8601-time          >=0.1.4     && <0.2,                  mtl                   >=2.1.3.1   && <2.3,                  network-uri           >=2.6.0.3   && <2.7,