named parameter.
revive Strategy, change ir of ActionT.
add params QQ and Members family. change Dict type.
update subpackages.
update examples.
ghc-7.6 compat.
update README.md
add document. change module structure. remove deprecated functions.
version bumps.
change runner type.
compat. ghc-7.6.
change fetch type.
compat. ghc-7.6.
use fetch' internal function in capture(not use DataKinds).
update CHANGELOG.md
Merge branch 'develop'

* included named parameter.
* simplified Strategy type class.
* removed DEPRECATED functions.
* changed runner type.
* changed module structure.