Merge branch 'master' into 0.3

* master:
  Remove Bug from the Unit instance of RowParser
  Update the "list-t" bounds

.travis.yml

@@ -22,6 +22,7 @@ install:
       cabal install "text == 1.0.*";
       cabal install "attoparsec == 0.10.*";
       cabal install "time == 1.4.*";
+      cabal install "list-t == 0.2.*";
     fi;
   # Work around the "haskell-src-exts" implicit dependency:
   - cabal install happy

hasql.cabal

@@ -105,7 +105,7 @@ library
     bytestring == 0.10.*,
     text >= 1.0 && < 1.3,
     -- control:
-    list-t >= 0.2.4 && < 0.3,
+    list-t >= 0.2.4 && < 0.4,
     monad-control == 0.3.*,
     transformers-base == 0.4.*,
     -- errors:

library/Hasql/RowParser.hs

@@ -14,7 +14,7 @@ instance RowParser b () where
   parseRow row = 
     if Vector.null row
       then Right ()
-      else $bug "Not an empty row"
+      else Left "Not an empty row"
 
 instance Backend.Mapping b v => RowParser b (Identity v) where
   parseRow row = do