Cabal revisions of yaml-0.5.1.2

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

 name:            yaml version:         0.5.1.2+x-revision: 1 license:         BSD3 license-file:    LICENSE author:          Michael Snoyman <michael@snoyman.com>, Anton Ageev <antage@gmail.com>,Kirill Simonov  extra-source-files: c/helper.h,                     libyaml/yaml_private.h,                     libyaml/yaml.h,-		            libyaml/LICENSE+                    libyaml/LICENSE                     test/main.hs                     test/largest-string.yaml      build-depends:   base >= 4 && < 5                    , transformers >= 0.1 && < 0.3                    , bytestring >= 0.9.1.4 && < 0.10-                   , conduit-                   , aeson >= 0.5+                   , conduit < 0.2+                   , aeson >= 0.5 && < 0.7                    , containers                    , unordered-containers                    , vector