Update bounds for GHC 8

vado.cabal

@@ -18,7 +18,7 @@ Source-Repository head
   location:     https://github.com/hamishmack/vado.git
 
 library
-    build-depends: base >=4.0.0.0 && <4.9, attoparsec >=0.10.4.0 && <0.14,
+    build-depends: base >=4.0.0.0 && <4.10, attoparsec >=0.10.4.0 && <0.14,
                    directory >=1.1.0.0 && <1.3, filepath >=1.2.0.0 && <1.5,
                    process >=1.0.1.5 && <1.5, text >=0.11.3.1 && <1.3
     exposed-modules: System.Process.Vado
@@ -27,7 +27,7 @@ library
     hs-source-dirs: src
 
 executable vado
-    build-depends: base >=4.0.0.0 && <4.9, attoparsec >=0.10.4.0 && <0.14,
+    build-depends: base >=4.0.0.0 && <4.10, attoparsec >=0.10.4.0 && <0.14,
                    directory >=1.1.0.0 && <1.3, filepath >=1.2.0.0 && <1.5,
                    process >=1.0.1.5 && <1.5, text >=0.11.3.1 && <1.3
     main-is: Main.hs
@@ -36,7 +36,7 @@ executable vado
     other-modules: System.Process.Vado
 
 executable vamount
-    build-depends: base >=4.0.0.0 && <4.9, attoparsec >=0.10.4.0 && <0.14,
+    build-depends: base >=4.0.0.0 && <4.10, attoparsec >=0.10.4.0 && <0.14,
                    directory >=1.1.0.0 && <1.3, filepath >=1.2.0.0 && <1.5,
                    process >=1.0.1.5 && <1.5, text >=0.11.3.1 && <1.3
     main-is: Vamount.hs
@@ -45,7 +45,7 @@ executable vamount
     other-modules: System.Process.Vado
 
 test-suite test-vado
-    build-depends: base >=4.0.0.0 && <4.9, QuickCheck -any, attoparsec >=0.10.4.0 && <0.14,
+    build-depends: base >=4.0.0.0 && <4.10, QuickCheck -any, attoparsec >=0.10.4.0 && <0.14,
                    directory >=1.1.0.0 && <1.3, filepath >=1.2.0.0 && <1.5,
                    process >=1.0.1.5 && <1.5, text >=0.11.3.1 && <1.4
     type: exitcode-stdio-1.0