Add makeLenses TH
remove comments
support type changing lens
debug log spam
move Lens to another modules
rename modules
Merge branch 'lens-th'
Add documents
Rename SimpleLens to Lens'
.travis.yml: build matrix GHCVER, exclude test directry from coverage reports.
run `cabal install happy` before installing other packages.
Fix build failure on GHC 7.4.
lookupEnv exists only in GHC 7.6 or higher.
export userFavoritesCount (should be in 953d767c979f64a0828ff18298c1f2cfd97b99a4)
Add attic
Users platform objects
Tweets platform objects
Follow naming conventions : Rename Url to URL
export lenses