Merge pull request #378 from karky7/master

dev-haskell/yaml-light: initial layout
dev-haskell/http-client-tls: RESTRICT tests requiring internet access.
dev-haskell/pngload: port to latest parsec (clashed with lazy bytestring)

Signed-off-by: Sergei Trofimovich <siarheit@google.com>
dev-haskell/distributed-process-simplelocalnet: bump up to 0.2.2.0

Signed-off-by: Sergei Trofimovich <siarheit@google.com>
dev-haskell/pngload: fix PNG parser (forgot to advance pointer)

Signed-off-by: Sergei Trofimovich <siarheit@google.com>