Bump version to 0.10.1

Raising the X11 dependency while keeping the xmonad version the same leads to
problems where cabal install uses the dependency versions following hackage,
not what is installed.

xmonad-contrib.cabal

@@ -1,5 +1,5 @@
 name:               xmonad-contrib
-version:            0.10
+version:            0.10.1
 homepage:           http://xmonad.org/
 synopsis:           Third party extensions for xmonad
 description:
@@ -61,7 +61,7 @@ library
         extensions: ForeignFunctionInterface
         cpp-options: -DXFT
 
-    build-depends:      mtl >= 1 && < 3, unix, X11>=1.6 && < 1.7, xmonad>=0.10 && < 0.11, utf8-string
+    build-depends:      mtl >= 1 && < 3, unix, X11>=1.6 && < 1.7, xmonad>=0.10.1 && < 0.11, utf8-string
 
     if true
         ghc-options:    -fwarn-tabs -Wall