Removing GHC 7.8 support.

It never really existed.

.travis.yml

@@ -3,7 +3,6 @@ sudo: false
 language: c
 
 env:
-  - GHCVER=7.8.4
   - GHCVER=7.10.2
 
 addons:
@@ -11,7 +10,6 @@ addons:
     sources:
       - hvr-ghc
     packages:
-      - ghc-7.8.4
       - ghc-7.10.2
       - cabal-install-1.22
       - libgmp-dev

servant-quickcheck.cabal

@@ -27,30 +27,28 @@ library
                      , Servant.QuickCheck.Internal.QuickCheck
                      , Servant.QuickCheck.Internal.Equality
                      , Servant.QuickCheck.Internal.ErrorTypes
-  build-depends:       base >=4.7 && <4.9
+  build-depends:       base >=4.8 && <4.9
                      , base-compat == 0.9.*
-                     , QuickCheck == 2.8.*
+                     , aeson > 0.8 && < 0.12
                      , bytestring == 0.10.*
-                     , aeson > 0.10 && < 0.12
-                     , mtl == 2.2.*
+                     , case-insensitive == 1.2.*
+                     , data-default-class == 0.0.*
+                     , hspec == 2.2.*
                      , http-client == 0.4.*
-                     , http-types == 0.9.*
                      , http-media == 0.6.*
+                     , http-types > 0.8 && < 0.10
+                     , mtl > 2.1 && < 2.3
+                     , pretty == 1.1.*
+                     , process == 1.2.*
+                     , QuickCheck > 2.7 && < 2.9
+                     , servant > 0.6 && < 0.9
                      , servant-client > 0.6 && < 0.9
                      , servant-server > 0.6 && < 0.9
-                     , string-conversions == 0.4.*
-                     , data-default-class == 0.0.*
-                     , servant > 0.6 && < 0.9
-                     , warp >= 3.2.4 && < 3.3
-                     , process == 1.2.*
-                     , temporary == 1.2.*
                      , split == 0.2.*
-                     , case-insensitive == 1.2.*
-                     , hspec == 2.2.*
+                     , string-conversions > 0.3 && < 0.5
+                     , temporary == 1.2.*
                      , text == 1.*
-                     , pretty == 1.1.*
-  if impl(ghc < 7.10)
-    build-depends:     bifunctors == 5.*
+                     , warp >= 3.2.4 && < 3.3
 
   hs-source-dirs:      src
   default-extensions:  TypeOperators
@@ -68,7 +66,7 @@ library
                      , OverloadedStrings
                      , FunctionalDependencies
                      , NoImplicitPrelude
-                     , AutoDeriveTypeable
+                     , DeriveDataTypeable
   default-language:    Haskell2010
 
 test-suite spec

src/Servant/QuickCheck/Internal/ErrorTypes.hs

@@ -4,6 +4,7 @@ import           Control.Exception       (Exception (..))
 import qualified Data.ByteString.Lazy    as LBS
 import           Data.String.Conversions (cs)
 import qualified Data.Text               as T
+import           Data.Typeable           (Typeable)
 import           GHC.Generics            (Generic)
 import qualified Network.HTTP.Client     as C
 import           Network.HTTP.Types      (Header, statusCode)
@@ -12,7 +13,7 @@ import           Text.PrettyPrint
 
 data PredicateFailure
   = PredicateFailure T.Text (Maybe C.Request) (C.Response LBS.ByteString)
-  deriving (Generic)
+  deriving (Typeable, Generic)
 
 instance Exception ServerEqualityFailure where
 
@@ -22,7 +23,7 @@ instance Show PredicateFailure where
 
 data ServerEqualityFailure
   = ServerEqualityFailure C.Request (C.Response LBS.ByteString) (C.Response LBS.ByteString)
-  deriving (Generic)
+  deriving (Typeable, Generic)
 
 instance Show ServerEqualityFailure where
   show = render . prettyServerEqualityFailure

src/Servant/QuickCheck/Internal/Predicates.hs

@@ -1,7 +1,7 @@
 module Servant.QuickCheck.Internal.Predicates where
 
 import           Control.Exception     (catch, throw)
-import           Control.Monad.Reader
+import           Control.Monad         (when, unless, liftM2)
 import           Data.Aeson            (Object, decode)
 import qualified Data.ByteString       as SBS
 import qualified Data.ByteString.Char8 as SBSC