abandon TW monad
Provide functions with old type signature, for backward compatibility.
Reduce the dependency on monad-logger.
Remove unused the function `showBS`.
Remove unused exports.

The lower version dependency on twitter-types had been changed at 0a410ac6c6392004a3995755786b753b41011f6c,
and the definitions of `UploadedMedia` has been removed at 10dbe44689c4987ba5300760302d56ff3fac3d6e.
reexport
Update documentation
Fix samples
fix docs
Add Eq instances
Update docs
Remove unused flag
Merge branch 'remove-tw-monad'
Version Bump