Dependencies for transformers-compat-0.5.0.2

Use transformers 0.2. This will be selected by cabal picking the appropriate version.

Use transformers 0.3. This will be selected by cabal picking the appropriate version.

• f-mtl Disables support for mtl for transformers 0.2 and 0.3. That is an unsupported configuration, and results in missing instances for ExceptT, but keeps the package Haskell 98.