Fix for GHC 7.8

Author: hamishmack

vcsgui/vcsgui.cabal

@@ -31,11 +31,11 @@ data-dir: ""
 library
     build-depends: MissingH >=1.1.0.3 && <1.3,
                filepath >=1.2.0.0 && < 1.4,
-               base >=4.0.0.0 && <4.7,
+               base >=4.0.0.0 && <4.8,
                directory >=1.1.0.0 && <1.3,
                mtl >=2.0.1.0 && <2.2,
                vcswrapper ==0.0.2,
-               process >=1.0.1.5 && <1.2,
+               process >=1.0.1.5 && <1.3,
                gtk >=0.12.0 && <0.13
     exposed-modules: VCSGui.Common VCSGui.Git VCSGui.Svn VCSGui.Mercurial
     exposed: True
@@ -57,11 +57,11 @@ executable vcsgui
     main-is: Main.hs
     build-depends: MissingH >=1.1.0.3 && <1.3,
                filepath >=1.2.0.0 && < 1.4,
-               base >=4.0.0.0 && <4.7,
+               base >=4.0.0.0 && <4.8,
                directory >=1.1.0.0 && <1.3,
                mtl >=2.0.1.0 && <2.2,
                vcswrapper ==0.0.2,
-               process >=1.0.1.5 && <1.2,
+               process >=1.0.1.5 && <1.3,
                gtk >=0.12.0 && <0.13
     buildable: True
     hs-source-dirs: src
@@ -80,11 +80,11 @@ executable vcsgui-askpass
     main-is: Main.hs
     build-depends: MissingH >=1.1.0.3 && <1.3,
                filepath >=1.2.0.0 && < 1.4,
-               base >=4.0.0.0 && <4.7,
+               base >=4.0.0.0 && <4.8,
                directory >=1.1.0.0 && <1.3,
                mtl >=2.0.1.0 && <2.2,
                vcswrapper ==0.0.2,
-               process >=1.0.1.5 && <1.2,
+               process >=1.0.1.5 && <1.3,
                gtk >=0.12.0 && <0.13
     buildable: True
     hs-source-dirs: src/exe/askpass src