Add explicit import Prelude to remaining modules to compile and run specs

main/Main.hs

@@ -2,7 +2,7 @@
 
 module Main where
 
-
+import           Prelude
 import           PostgREST.App
 import           PostgREST.Config                     (AppConfig (..),
                                                        minimumPgVersion,

src/PostgREST/ApiRequest.hs

@@ -1,7 +1,6 @@
 module PostgREST.ApiRequest where
 
-import           Protolude
+import           Prelude
-import qualified GHC.Show as S
 
 import qualified Data.Aeson                as JSON
 import qualified Data.ByteString           as BS

src/PostgREST/Parsers.hs

@@ -3,6 +3,7 @@ module PostgREST.Parsers
 -- )
 where
 
+import           Prelude
 import           Control.Applicative           hiding ((<$>))
 import           Data.Monoid
 import           Data.String.Conversions       (cs)