Merge pull request #1 from sol/master

Update for transformers-0.3
updated changelog
Bump `bytestring` version constraint to support GHC 7.6.0 RC1
Merge pull request #2 from hvr/ghc76

Bump `bytestring` version constraint to support GHC 7.6.0 RC1
.gitignore VIM undo files *.un~
version bump to 0.2.0.5
Revert ".gitignore VIM undo files *.un~"

This reverts commit e3197b7be824642629904d9ba4bc0a9a5204b11d.
Update for transformers-0.4
Bump version